What Do Bottom Feeders Eat? (101 Aquarium Care Guide)

what do bottom feeders eat

Have you ever wondered what do bottom feeders eat? In this article, we take a look at some of the most common items on a bottom feeder’s diet and offer tips on replicating their natural diet in an aquarium setting. So if you’re nosy about what goes into your fish’s stomach, read on!

What do bottom feeders like to eat? 

What do bottom feeders eat? Bottom-feeding fish is the garbage disposal of your aquarium; Bottom feeders eat anything left at the bottom. The bottom feeder’s primary food source is algae and decaying plant matter (detritus) from fish food to algae to uneaten fish pellets.

Some bottom feeders like bristlenose plecos and corydoras can even resort to cannibalism if their usual prey is scarce. Bottom feeders are omnivorous by nature and feed on detritus and algae when plant life is short in an aquarium.

How do I make sure my bottom-feeder gets food?

Feeding dry foods across the water surface will help ensure that you have maximum dispersal in your tank.

If dominant species crowd out specific areas, try providing mixed with different types at opposite ends for better distribution.

If there are no dominant species in your tank, you can put your food from the bottom at one end and make sure everyone gets a chance to eat.

Even though bottom feeders are not picky eaters, they have their preferences. For example, if you’ve got a male betta, he may not want to eat anything too close to his territory.

How often do bottom feeders eat?

Bottom fed fish like plecoes and corydoras consume food on the tank bottom. Providing them with sinking pellet or tablet food three times daily will ensure that they get their share of the food when it’s at its best.

What else can bottom feeders eat besides algae and decaying plant?

Bottom feeders will also graze on the hair, skin, scales, and fins of dead fish. This triggers them to eat and helps in their digestion process.

Do bottom feeders eat all kinds of algae?

No, certain bottom feeders will only eat specific kinds of algae species.

For example, a pleco can’t eat green algae that grow in the aquarium with dim lighting. They’ll only feed on brown algae that grow in shaded areas of the aquarium.

What’s the best way to feed bottom feeders?

The best way to feed bottom fish like plecos is by carefully dropping food across the tank bottom.

This feeding method ensures that the food gets dispersed evenly and doesn’t land on any surface where it could get sucked into a filter or be eaten by other nocturnal fish in the aquarium.

This method benefits larger bottom feeders that can quickly swallow and slowly release food into the water.

How do I know if my fish is hungry?

Fish will usually show a clear indication of being hungry. They’ll begin searching for food and interact with other fish in the tank to compete for food. Sometimes they’ll also “beg” for food if you’re near the tank.

What can you feed your bottom feeder fish?

If you’re feeding your bottom fish with sinking pellet, tablet, or flake food, try adding some freeze-dried brine shrimp to it.

What other foods can I feed my bottom feeder fish? There are several algae and plants you can feed to your bottom feeders. Examples include; Water sprite, Anubias, Java fern, and moss balls.

Can you have too many bottom feeders in your tank?

As long as there are no dominant species in your tank, bottom feeders can co-exist with other fish.

However, most bottom feeders will only thrive in complete harmony with others when there are no dominant species (like bristle nose or bettas) in the tank.

Bottom feeders are a great way to keep algae under control without harming any fish species or plants in your aquarium. Try getting a bottom feeder and enjoy the benefits of a clean tank!

Do bottom feeders eat fish poop?

Fish poop is one of the most significant sources of nutrients for algae to grow. But bottom feeders are not after nutrient-rich food.

They only feed on decaying plant matter and algae that has already settled down to the tank bottom.

Bottom feeders like corydoras catfish and plecos (who are called ‘algae eaters’) can sometimes be seen grazing on the substrate for food. But they don’t eat fish poop.

Do bottom feeders eat live plants?

Most bottom feeders are herbivores. They’ll only eat decomposing plant matter and algae that have already settled down to the tank bottom.

Bottom feeders have been known to eat live plants in rare cases because they’ve mistaken them for decaying plant matter or algae. Bottom feeders are not after nutrient-rich food.

Commonly Asked Questions about Bottom Feeder Fish Aquarium Care (FAQ)


If you have a bottom feeder in your aquarium, they need to be fed. Many people think that “bottom feeders” only eat the algae and other detritus off the tank floor, but this is not true. Bottom feeders also enjoy eating small pieces of food such as flakes or pellets.

You can even buy specific foods for them designed with their dietary needs in mind! Ensure you’re feeding your fish on time so they don’t go hungry and cause havoc inside your home! Feeding frequency will vary depending on what type of species it is – some might eat every day while others may wait up to 2 weeks before needing another meal. So if you want to learn more about what do bottom feeders eat, just read the complete post.

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