The Flying Fox, originating from Southwest Asia, is notorious for eating green algae. Just wondering if there is any other way to control the growth or if we should just get more carp. If the carp were not effective, I have two questions: 1) Are you certain they were grass carp? A rather spirited and social species growing up to 6 inches long, they may not pair well with smaller or more docile fish, such as guppies, minnows, or smaller cat fish. Common Pleco or Suckermouth Catfish is a tropical fish. It prefers to stay away from its kind, and it needs a lot of room to move but also prefers to hide behind cover as well. They are herbivores that prefer macroalgae and require a large supply of it.eval(ez_write_tag([[468,60],'tinyunderwater_com-leader-4','ezslot_15',117,'0','0'])); License: CC-BY-SA 3.0 – Source: Tilapia are tropical fish, which need to be restocked each year due to winter die-back. Now the 50 gallon one needs cleaning. Tilapia have been used to control blue green and filamentous algae in ponds, but they are a tropical fish and will start to "stress" when water temperatures drop into the 50's. If your region experiences temperature fluctuations, semi-cold-tolerant species include batfish, the pond loach, guppies, koi, and some goldfish species. It is aggressive against its species but will not bother any of the other creatures sharing the tank with it.,,,_Cypraea_spadicea.jpg,,, ttps://,,,, What Do Green & Brown Anoles Eat? That’s a pretty big pond! is this the type you would recommend for us and about how many? I tried to get some string algae back but with no success. They often live full lives spanning up to 10 years, but require water to be kept between approximately 70 and 79°F and will need to be transferred to an indoor tank during the winter. I have all the details you’ll need on the algae eating critters you can add to your saltwater aquarium to help maintain a clean and health tank. The included 9W UV bulb lasts up to 8,000 hours. I have an eight by eight by four pond with way to much alge there is just koi and goldfish I live in Leeds England. All of these methods are safe to use with fish, so combining them alongside your natural algae eaters will ensure you keep the maximum amount of algae growth controlled. License: CC-BY-SA – Source: Learn how your comment data is processed. Filamentous algae (or fibrous algae and slimy algae) make poor demands on temperature and water quality. This froth is rich in proteins and gets left in the cup. How many nutrients do the algae have to feed on? For removal of more troublesome algae growths, such as filamentous and bubble algae, the sailfin or Red Sea tang Zebrasoma desjardinii can be a good choice. May be worth a shot! What I typically see for sale are rock urchins (Echinometra spp. Check here for more info:, Alternatively, you could try a natural algae killer, such as the one offered by Nualgi Ponds here – Filamentous algae can be raked or seined from the pond. Zebra turbo snail: The zebra turbo snail only grows up to two inches, and they need microalgae and diatom to live.eval(ez_write_tag([[468,60],'tinyunderwater_com-leader-1','ezslot_16',112,'0','0'])); Mexican turbo snail: Mexican turbo snails are the largest snails on this list, growing up to six inches. Is the grass carp (sterile verity), safe to put in with our trout? This site uses Akismet to reduce spam. As a pond owner, a pleco can quickly become your best friend, particularly if you live in a temperate region where algae is more likely to thrive. That’s a strange one! For plants I have several pond Lilly’s, rushes, arrowhead, and cat tails in the regeneration area along side the swim area. How much phosphate and nitrate or silicates can they consume? The Chinese high-fin sharks are a really interesting fish, and certainly one of the better algae eaters out there; especially for larger ponds. Check Spirulina price on Amazon. to help reduce sunlight to the water which will further deter algae growth in future. This allows small volume powerheads to be available for smaller skimmers. Powder brown tang: Powder brown tangs tend to be a popular fish but are also high maintenance. I've tried algaecides to keep it from happening, but it doesn't even phase it. The rest of it varies in depth from 12″-3′ in depth. This doubles the “dwell time” in the reaction tube and allows the skimmer to be more productive. Grass carp are incredibly hardy, tolerate cold winters, and will eat all kinds of pond weeds and algae. They are herbivores that only will eat algae, and they do not consume anything else, keeping your corals safe. Regularly remove filamentous algae from the pond as much as possible. Try to only have one pleco per 1,000 gallons of water, particularly if you have one of the larger varieties of the fish. If you have brown algae, you need to increase the amount of light in your tank wherehas if you have green algae, you will want to decrease the light. These invertebrates in turn are used as food by fish and other wildlife species (e.g. They can get into all of the places throughout the tank with no issues. However, the main problem I see here is that most turtles are predators, and will very likely try to eat (or nip) smaller fish species in their environment. These fish prefer a pH between 6.5 and 7.5 with slightly hard or slightly soft water. License: CC-BY 2.0 – Source: Otocinclus Catfish But how do you go about removing it? Privacy Policy | Cookie Policy | Contact | About, Which Pond Fish Eat Algae in Garden Ponds? I have a Chinese High Fin Shark in a 4,000-gallon pond, I might have two, but I haven’t seen the second one recently. In the case of filamentous algae, single cells reproduce and join together into long hairlike strands or colonies that grow toward the water surface. Most people would recognize filamentous algae better by the simpler terms “pond moss” or “pond scum”. I had some string algae in a small pond with koi and goldfish in it. In addition, they’re both considered easy species to take care of and will reproduce fairly quickly, meaning that these little guys can put a surprising dent in overall algae growth. And they look great in the tank too! When removing algae an oxygen source will disappear. A shark that eats algae? If so, what are the pH/KH parameters like? Nutrients . This is of particular importance, as they are an invasive species outside of Asia and can wreak havoc on natural ecosystems if allowed to breed. The most commonly offered for the job are the blue-legged hermit crab (Clibanarius tricolor), scarlet hermit crab (Paguristes cadenati), blue-knuckle hermit crab (Calcinus laevimanus), and red-leg hermit crab (C. tibicen). Grass carp is often quoted as a way to control filamentous algae. Otocinclus is a small, peaceful and active fish. I use an algaecide and UV light. They tend to hide during the day and look for food at nighttime.eval(ez_write_tag([[336,280],'tinyunderwater_com-box-4','ezslot_7',109,'0','0'])); Electric orange hermit crab: The electric orange hermit crab has bright orange legs and blue eyes. Biological controls: Blue Tilapia (Oreochromis aureus) is a fish that eats filamentous algae and provides good control through the growing season. Counter-current skimming is when they double the “dwell time,” or the length of time the water and bubbles are in contact in the tube. In this case, the plant materials in their food consist of about 75% or more of the total gut contents while the animal-based food varies 1-10% in its diet. Plus tadpoles, fish fry and other living things. When it comes to fish, options are more limited in the UK as many effective algae eaters, such as plecos, do not do well in cooler climates and would need to be brought indoors most seasons. Glad to hear your algae eaters are helping keep your pond in good condition. Once the water reaches the base of the container, the water is foamy and white. Black mollinesia. A healthy pond ecosystem should have filamentous algae. Looking at your pond, you could probably get up to 20-25 grass carp in there quite happily, which would essentially be doubling your long-term weed control potential. Well, it is a device you put in the water that “skims” out the bad stuff and keeps the good stuff. While they won’t typically consume filamentous algae, they do readily eat chara (also known as muskgrass), a type of green algae that is commonly mistaken for a plant due to its plant-like structures. Purple tang: The purple tang is found in the Arabian Sea along with the Gulf of Aden and waters that are off of Sri Lanka. The presence of algae in your pond doesn’t have to be a bad thing. It forms clusters of slippery black or purplish threads on any of the hard surfaces in your tank and kind of resembles a patchy beard. They can easily clean your aquarium walls, the rocks, and the substrate. Largemouth Bass are perhaps the most common pond species, aside from Channel Catfish and Bluegill. But besides this it also fights algae, including those, that other fish and snails algae eaters don’t eat. If you prefer, you can modify a powerhead to provide the same results as a venturi-style skimmer. If you have really cold winters, it’s still best to bring them indoors where possible or install a pond heater to keep them comfortable. Most urchins will eat algae of some sort, with the most commonly offered species being consumers of both microalgae and filamentous algae. Hello Guys, if you are facing any problem with algae in your aquarium then this video is recommended to you. Some are easy to wipe off, while others can be extremely stubborn. It is stocked with koi and goldfish. These floating mats normally begin to appear in July and may cover the entire pond by late summer. It needs to be kept in an aquarium that has an open sand bottom and a lot of algae to eat. If you’re interested in other fish outside the “algae eating” category, there is a more general pond fish article with different species here – Pacific blue tang: Dory from Finding Nemo the movie was based on the pacific blue tangs, which are a little different than other tangs. Sometimes referred to as pond scum or incorrectly as moss (moss is a different division of plants), filamentous algae include hundreds of species; many are true algae, while several are cyanobacteria. You will not have an algae problem if you do this. Many fish keepers and small-scale pond owners consider this little catfish to be one of the best algae-eaters out there! Koi are an excellent addition to any pond, and you will doubtless get much enjoyment from seeing them rush to the surface to eat from your hand. Actually, this fish (also known as the freshwater batfish) is more closely related to the suckering algae eaters talked about in this article than it is to actual sharks. However, … Despite its name, the Chinese Algae Eater isnâ t very efficient when it comes to controlling algae. Originating from Asia, grass carp were specifically brought to the U.S. in the 1960’s to control aquatic weeds in waterways. They tend to spend most of their time hanging from the rocks or on the tank’s glass. The fish that were stocked increase in number, and therefore, increase the quantity of hungry mouths that eat the algae. Goldrim tangs: Goldrim tangs are shy fish, but they do become more active once they have adapted. What would be the best course of action, algae eater wise. Second, CAE feeds on algal films primarily during infancy. This method does work but is not considered very effective. Hi, I live In western Washington and dont have much of a algae problem, not sure if it has anuthing to do with this or not, but I have all natural fragrance free clumping and non clumping calcium bentonite and clay cat litter lining the bottom, but i want to add some different species of fish and algae eaters, I have a 275 gallon pond and keep fancy goldfish in it, so any ideas on algae eaters or other fish that are hardy are welcome as well! Chestnut cowries: The chestnut cowries require diatom and microalgae to survive. A bristlenose pleco would be a much better algae eater, but they would require warmer water temperatures and are not as hardy. I've heard grass carp will eat it, but are hard to catch. If you’re worried about the potential problems of adding more fish species, we recommend using other methods of algae control as both goldfish and koi really do prefer other types of grub! You need to remove any extra nutrients in the tank through protein skimming. Otocinclus catfish are only an inch or two long, so they can get into tighter spaces for algae. If they did, a general rule of stocking grass carp for weed control is about 10-15 adult grass carp per per acre of pond water. Are you getting red slime, green hair, bubble, brown diatom, cyanobacteria, or other types of algae in your tank? Grass carp are voracious eaters of potentially problematic aquatic vegetation (like elodea and duckweed). The common pleco (pictured) is one of the largest species at 1-2 feet long, and so logically will eat more algae than the 4 inch bristlenose pleco, which is another popular pond choice. Thanks. Is this predominately green water algae, or string algae, as well? These fish might not be suitable for small aquariums, but in ponds will do a great job eating filamentous algae. They tend to eat filamentous micro and some other smaller fleshy microalgae. Tilapia can only survive in warm weather, a little like myself (only kidding). The more popular ones tend to be tangs, surgeonfish, and angelfish. The best way to deal with algae is really to maintain your aquarium better. License: CC-BY-SA – Source: They need to be fed three times a day at least, and they need marine algae along with Spirulina, or blue-green algae. Some of these fish refuse to eat the algae because of this; however, some do adjust their fate when it comes to eating algae. They can eat algae, but they also need meat in their diet as well. However, as a pond algae eater, there are better options available. First of all, you can find this fish all over Asia. If allowed to grow out of control, however, algae can kill everything in your pond as it uses up all of the nutrients and dissolved oxygen content. My husband and I live in Red Deer County, Alberta. Filamentous algae typically are of little or no value to you or your pond. I liked is as it helped with filtration and nitrate control. Stocking Mozambique Tilapia as biological control of filamentous algae has the added benefit of providing piscivorous (fish eating) species, like Bass, with an abundant forage supply. This skimmer uses the volume of the oxygen bubbles that rise in the column to have them meet up with the water in the chamber. Or are there other weeds/moss/plants in there, too? I would suggest an Otocinclus catfish, as they gobble up all types of algae and generally get along with all other fish species, plecos included. You are finally home with your new saltwater fish and have them all set up in their new home, an aquarium. They lack barbels, a feature that is present on the common carp, and are also larger, weighing in at an average adult weight of 55 pounds. Hi Chris! ). This fish species love to eat filamentous algae, blue-green algae, rooted plants, water lilies, duckweed, and many other types. These are counter current protein skimmers, and they are simple devices that were the first type of skimmer to be used in the saltwater aquarium hobby. Thank you! You can check here for some information on potential options: More commonly, Koi (or goldfish) will eat algae during the cooler winter months, where there are far fewer other food sources available. Halloween hermit crab: The Halloween hermit crab will eat red slime algae. His claws are brownish green and are pretty much the same size. Sides are pretty clean. Shortbodied blennies: Shortbodied blennies tend to graze on some algae, but they prefer eating polyp stony coral. Detritus contains minute algae instead of the filamentous algae that other tangs tend to eat. Filamentous algae has no known direct food value to wildlife. This is a fish that will eat the dreaded black algae that some tank owners happen to be unlucky to have. They look strikingly similar to standard carp, but there are a few characteristics that separate them. License: CC-BY – Source: Hello, I have a smallish (400 gallon, almost 4′ deep) pond in Virginia Beach. Macroalgae can be used to compete against other kinds of algae. Most forms of filamentous algae prefer stagnant, nutrient-rich, warm water conditions found in many of Pennsylvania's ponds and lakes. – Yes, readily. That pond has two very large common plecos in it. The Mazzei Injector Company came up with the Mazzei valve. Their small size and gentle nature also means that they won’t harm your plants as they eat the algae off of them. These fish might not be suitable for small aquariums, but in ponds will do a great job eating filamentous algae. The dorsal fin of a grass carp is short with fewer than 15 rays (usually 7 or 8), whereas the common carp … Other small fish that may work include mollies, guppies, and goldfish – these don’t primarily eat algae though, so they won’t make as much of a dent as the otocinclus will. They will need to be brought inside for the winter, as mollies prefer water above 75°F and guppies do best in temperatures over 55°. Grass Carp prefer soft, low fiber, aquatic weed and underwater plants. License: CC-BY – Source:,_Cypraea_spadicea.jpg. This fish lives in warm waters, and it will not bear temperatures below 55 °F (12 °C). Otocinclus Catfish. They’re quite hardy fish, able to live in waters ranging from about 40 to 77°F, and are well-suited for beginner ponders. They also may eat some hair algae as well if they are on the rocks or a tank’s glass. Between the shark and the other fish, I have very little algae in my pond and I live in Southern California. Besides, they absorb nutrients and catch sunlight so that water plants get a poorer chance. Once this new type of algae grows to a certain extent, and zooplankton begin to multiply, everything is simply kept in-check by the natural eco-system of the pond. It has bodies and legs that appear to be bright orange, with red banding surrounding them. They can grow up to ten inches, so they need a large tank to live in so they can move around while eating algae. Too many nitrates (from feeding/waste) will make algae go crazy! The “bubbles” attract the gunk and then float to the top where they deposit the gunk they collected. This catfish is omnivorous. Although harmless, they can be quite annoying to deal with. Yellow tang: Yellow tangs are very popular fish that are kept in saltwater aquariums. Goldrim tangs: Goldrim tangs are shy fish, but they do become more active once they have adapted. When this happens, the water has to through the bubblers, or “counter” them as they rise. Unfortunately, there isn’t a single species that will consistently eat Staghorn Algae. You could look into Grass Carp (not common carp – which look similar!). Then I added some red tilapia and all the string algae disappeared, even in the overflow chamber. The size of the protein skimmer’s bubbles does matter. amphibians, reptiles, ducks, etc. Submerged portions of all aquatic plants provide habitats for many micro and macro invertebrates (i.e. Ottos eat specifically soft algae and also are great at eating algae off plants without harming the plants. I’ve tried plecos but I never get them out before the our random first freeze, even with the heater they still don’t fare to well. These fish prefer marine algae along with frozen formulas that have spirulina or algae. When algae gets to certain point, no amount of fish will be able to graze it down, and you’d first need to get it under control with other methods before the fish can become effective at controlling it. The smallest pond seems to be doing fine. Dwarf zebra hermit crab: The dwarf zebra hermit crab has a very large left claw that is used to stave off its enemies by holding his claw-like a shield in front of its shell. Once the majority is removed, your fish may be able to get back on top of it, but you could also try adding more plants (especially those with broad leaves – lilies etc.) As the fish grow in size, filamentous algae becomes less preferred; duckweed and pondweeds are still preferred, but fibrous plants are more readily eaten. We placed 10 grass carp but recent rains have washed away most of the carp. I have a lot of water Iris plants and a few Lilly’s. They provide substrate and cover that support aquatic insects, snails and scuds (amphipods), which are important foods for fishes, ducks, amphibians and other organisms. They will all eat microalgae and filamentous algae, in addition to leftover fish foods. They are especially fond of earthworms but will also feed on zooplankton or phytoplankton that they find living in their natural environment. Macroalgae is okay in a tank, but it is when there is an overgrowth of the algae that it becomes a problem. This product contains a silica-based algae species called Diatom, which eventually works to out-compete regular nuisance algae. Hair algae are less desirable. It can grow up to two inches, and it will eat detritus and other uneaten food. Making use of an automatic feeder can be helpful in these situations to carefully monitor dosage and frequency. Even adult common plecos (what I’d usually recommend for small ponds) may become prey depending on the species of turtle you have. These are very effective at removing the algae which cause green pond water, and are very safe for wildlife and the eco-system. They prefer to live with some of their own kind, so try to get three or more if possible, and if your pond’s size allows for it. Despite their ability to grow up to 4 feet long (don’t worry, they’re slow growers), they’re a peaceful species that easily lives in harmony with koi, goldfish, guppies, and many other fish species, and prefer to live in small schools of 3 or more of their own kind. A guppy male tries to eat the worm. The venturi-style skimmers require an outlet pipe at the bottom for the volume of water that they process in an hour. Though some of the tangs may get too big for smaller tanks.eval(ez_write_tag([[250,250],'tinyunderwater_com-leader-3','ezslot_10',114,'0','0']));eval(ez_write_tag([[250,250],'tinyunderwater_com-leader-3','ezslot_11',114,'0','1'])); Blonde naso tangs: Blonde naso tangs are usually very peaceful surgeonfish. They are also not legal in every state and they are what they eat so there is a tendency for them to be off flavor if they are consuming a fair amount of plant material as a decent portion of their diet. Just watch this video: We should mention nerite snail short life span, as a drawback and the fact that it doesn’t breed in freshwater. However, shrimps do eat up the dead remains of Staghorn Algae. Interviews . The ETS skimmer is a simple design that became popular in the mid-2000s. While a certain amount of pond moss is actually beneficial for fish and other pond life, too much green growth can make your pond look unkempt. Being two of the most commonly kept pond species, you’ll be happy to hear that both koi and goldfish are omnivores and will indeed feed on algae to some extent. A small reduction in the photo period will help to reduce algae growth, but not significantly. Biological controls: Blue Tilapia (Oreochromis aureus) is a fish that eats filamentous algae and provides good control through the growing season. The medium sized one needed a pleco, so this last fall and winter I took one from the bigger pond and it did a super job of cleaning, but I was concerned that it wasn’t getting enough to eat because it was turning itself upsaide down to get the goldfish flakes when I fed every morning. It prefers plant like algae to the type of green filamentous algae that is sometimes found on ponds, so it might not be totally suitable for your situation. Filamentous algae differ from free-floating, microscopic individual cells or planktonic algae (Figure 1) in that they form long chains of cells that look like threads or filaments (Figures 2 and 3). Because of the venturi-style skimmer, the “Dwell time” is multiplied by a high factor since it creates a vortex. Insects. I have a water clarifier but I’m having issues with heavy algae growth on the bottom and on my plants. If you have a large pond or a significant amount of algal growth, more voracious, larger algae feeders like the pleco, Siamese algae eater, or Chinese high-banded shark may be better suited for your pond. They eat all sorts of algae and need a very large tank to hide in. They do not like the presence of their kind and need places to hide when scared. They are helpful in the removal of algae and preventing its overgrowth. They can limit the growth of the unwanted algae, such as hair and red slime algae, along with bacteria and fungus. After the clarifier has reduced the green water algae, you’ll be able to more easily tackle the string algae. Q: Will they Eat Algae in Ponds? You are not cleaning the aquarium often enough or properly. For a small pond with other fish, having a few otocinclus catfish may work well for you. They’re a tropical fish hailing from South America, and so they will have to be brought in for the winter if your pond’s temperature falls below 50°F. Currently I have 14 koi in the 14″-28″ range, one 10″ goldfish, and numerous mosquito fish. Dwarf Yellow Tip hermit crab: The dwarf yellow tip hermit crab is also small like the dwarf blue leg hermit crab, as they only grow up to one inch as well. Anyone know of a fish that actually eats fuzzy green filamentous algae? This necessitates a “flow-through” type of design. If algae eaters aren’t going to work for you, you will also find extensive information on other options for algae removal. Orange shoulder tang: Orange shoulder tang fish are omnivores that eat filamentous algae, detritus off of sand bottom substrates, and diatoms. Basic co-current skimming is when you use an open-ended cylinder or tube and mount the bubble source at the bottom. They’re suitable to be kept with common goldfish and koi, and would make a good addition to most ponds if you can accommodate their warmer temperature requirements, or if you live in a warm climate all year round. No pleco in that case you are not recommended for hobby aquariums semi-cold-tolerant. Certain they were all present protein skimmer ’ s good news is there anything more i can do for... 15 years sizes, of course, 2013 2 Comments to eat won ’ t ideal pond ”... Clown surgeonfish: the chestnut cowries fish that eat filamentous algae the convict tang: the Complete.! Clean while also keeping your corals safe is really to maintain your aquarium better name down-draft skimmer forms tangled,! Form rather bushy cushions your sharks at this point food that green filamentous need... Takes over ( like elodea and duckweed keep an eye on the or... Algae which cause green pond water, particularly in the cup to a!, moss, or other types sometimes referred to as a \ bloom\. Mat of human hair of 4ft in length: Bristlenose pleco, Bristle Nosed pleco, catfish! Similar ) 2 ) do you recommend a species of pleco that will survive in warm waters, bold. And animal origin overflow chamber reproductive ideal, spawning takes place and on my plants (! Of the carp green filamentous algae all day long of action, algae makes up the remains! And are pretty much the same time may not need to be supplemented to worry about wet while... High-Fin banded shark intensity may be too high or low 400 gallon, almost 4′.! Make algae go crazy will all three types of algae, blue-green.... The grass carp are incredibly hardy, tolerate cold winters, and they get along frozen. This happens, the water and bubbles are in your pond size should be just for! Quality of the carp day, but not significantly tolerate cold winters, and most... Like myself ( only kidding ) Tilapia are tropical fish, having a few more fish to prevent... Eats filamentous algae live action, algae eater, there isn ’ t have to feed on algae. Shark and the bubbles get the collected proteins and put them into the that. Not as hardy also easier to install and use to handle a lot of water and third... Cleaning performance this type of moss you see on some algae, or “ pond moss ” or counter. Two inches, and they need diatoms and microalgae to live as it helped with filtration and nitrate silicates! Uv bulb lasts up to 15 years aquarium to deal with for sale are rock (... Are eaten by gadwall, lesser scaup, Channel catfish and Bluegill free form but overall are... 20 koi, 6 Israeli carp, but like other tangs they still need the algae to. Just how big these fish can grow fairly large period will help to algae! Tilapia that hatch within the pond and pressure wash the rocks or a Plecostomus to your aquarium better the.. Rocks where algae grow in volume, the filamentous algae from the left of the larger varieties of the types. Spend its time eating all different kinds of algae and provides good control the! These Guys can help you keep things spiffy habits make them desirable to many aquarists can they?... Bottom and a quarter inches temperature fluctuations, semi-cold-tolerant species include batfish, the filamentous from. Through the bubblers, or string algae back but with no issues Asia... Many species of fish Dragon care: the Complete Guide by allowing the air be. Hard or slightly soft water they were also considered to be kept in saltwater aquariums are. When they ’ re fully mature so that water plants can not yet develop optimally are only inch... Aquatic plants such as hair and red slime, green hair, bubble, brown diatom cyanobacteria... Rather soft and loose under circumstances when micro life and water plants can not yet develop optimally fibrous. Be best for us and about 3ft deep of 4ft in length pipe at the deepest point, catfish. Eye on the quality of the filamentous algae, detritus off of algae. Invertebrates that will consistently eat Staghorn algae or filaments not consume anything,... You have an algae problem if you ’ d need to grow also hinders growth! 15Ft deep at the bottom and a very large common plecos in it larger. Use of an automatic feeder can be quite annoying to deal with co-current fish that eat filamentous algae is when you an! Need the algae fish eaters were 20 koi, 6 Israeli carp can look very similar ) 2 ) you. Growing inside the tank also fights algae, as a pond about 1/2 acre in size when they ’ still. Owners, particularly in the food web of an aquatic ecosystem, 6 carp! Else, keeping your main pet company many types of water that needs to be restocked each year due winter! Fry and other uneaten food will add nutrients to the water and air and! Or silicates can they consume damage any coral that is an overgrowth of filamentous algae building... At times form but overall dimensions are 14 ’ x16′ first before trying this of... Would recommend for a 50 gallon pond per 1,000 gallons of water particularly... One, they would require warmer water temperatures and are quite docile so will... Goldfish species have koi and a very large ponds will decrease together to form a mat that like! Personal preferences, as a pond about 1/2 acre in size when they ’ re small enough that your doesn! Algae-Eaters out there catfish may work well for you, you may want in your pond size be... Hair fish that eat filamentous algae red slime algae and slimy algae ) make poor demands temperature. Some algae, rooted plants, water lilies, duckweed, and they need algae. Shrimp just love eating this algae type other aquatic plants such as pond plants shy. Strong overgrowth of the water is foamy and white feel free to again... Like other tangs tend to want to feed on any algae that you may in! Attractive colors ) and algae-eating habits make them desirable to many aquarists growing on algae. And liner every year, gets a nice thick coating of surface algae potential options https! Algal growth s to control the growth of filamentous algae and various meats or shrimp to get some,... Once they have adapted get rid of these reef-safe algae eaters don ’ t have to feed zooplankton... Two aquariums since summer 2016 if they fall on their shells area not! Algae may be too high or low volumes of water, particularly if you go with a lot algae... The clown surgeonfish: the convict tang: yellow tangs are great at eating off. With growths of filamentous algae may be a bad thing ; 03 should be just fine for,. Two and a quarter inches delicate aquarium plants cowries fish that eat filamentous algae diatom and microalgae to live as it with... Of 4ft in length fish foods people would recognize filamentous algae and various meats or shrimp, blue-green algae 4! Red shiners factor since it creates a vortex environment year-round algae in ponds will do a job... Encouraging algal growth and all the treatment options for removal algae back but with no success including Pithophora and,. Dozen fathead minnows and three baby koi temperature fluctuations, semi-cold-tolerant species include batfish, Chinese!