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Plants are great hiding places for fish who are being bullied by other fish or newborn fry. If you have live plants, they can provide the necessary oxygen for your fish to survive. The plants can filter out waste, as well as provide an extra food source for your fish. Plants also assist in algae prevention.... there ya go! I hope this was helpful.

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12y ago
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15y ago

Water Plants do the same thing in water as terrestrial plants do on land. They use up Carbon dioxide and produce Oxygen during the photosynthesis process. They also use up nitrates that are the product of aerobic bacteria doing its job converting the Ammonia and Nitrite (products of fish living and pooing etc) in a cycled filter. The use of 'fine' air bubbles can increase the fish holding capacity of an aquarium by increasing the amount of oxygen (Air) uptake in the water.

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15y ago

Algae is one of natures water cleaners. The presence of algae indicates that nature is doing its job and is supplying plant life to help keep your water healthy by removing (using up) some of the excessive Nitrates that always develop in any aquarium that is occupied by fish or snails etc. If you have an excess of algae, it means your tank needs more plant life to cope with all the waste products that are in your water.

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13y ago

Plants can benefit from fish by expelled co2, which plants use to make the fuel used for growth. Fish leavings can also act as a fertilizer for plants. Many fish groom plants and help eat competing micro organisms such as algae and bacteria that may overwhelm plants. In some cases certain fish may turn over the substrate to provide a healthier environment for plants.

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14y ago

good!

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Q: Why do fish need algae?
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Related questions

Why does the ocean need algae?

Algae feed small fish which starts the food chain.


Do algae fish change colors?

I guess you are asking about "Algae eating fish" If so, then there are so many different species of fish that eat algae that it is impossible to advise you on their colouring. You will need to be more specific.


Do algae eat fish?

Some of them do.Small fish are mostly the ones who eat algea. Most of the bigger fish eat smaller fish.


What do moquitoes eat?

algae fish you algae fish you


What small fish eat algae?

Some small fish that eat algae include otocinclus catfish, Siamese algae eaters, and mollies. They are helpful in controlling algae growth in aquariums and fish tanks.


What does the food chain begin with in the sea?

The food chain will begin with light. Algae need the light to make food. Small fish, whales and crustaceans eat the algae. Bigger fish, sharks, dolphin's, eat the fish and crustaceans.


What type of fish eats algae in fresh water lakes?

Some examples of fish that eat algae in freshwater lakes include catfish, tilapia, and grass carp. These fish help keep the algae levels in check and maintain the balance of the ecosystem.


What do you do feed your alge fish when there is no alge in the fish?

If you have an algae eater and no algae you can go to any pet shop and get algae waffers.


Can plankton survive without algae?

no.... if there is no algae there is no plankton... if there is no plankton there is no fish or baby fish


What fish eats algae?

Many species of fish, such as plecos, mollies, and Siamese algae eaters, feed on algae. These fish help to control algae growth in aquariums and ponds by consuming the algae as part of their diet. Algae-eating fish can be a natural and effective way to keep algae levels in check in aquatic environments.


Does too much algae in a pond kill the fish?

If the algae is growing on the fish, the answer should be no. Algae growing on fish is a form of commensalism, which one life form benefits, while the other isn't benefited, yet isn't harmed at the same time. Most fish, no.


How do you clean algae off fresh water fish tank accessories?

you buy an algae fish at a pet store to eat the algae.