CATDOLL : CATDOLL: What fish eat fish poop? (What fish eat fish poop?)

Abstract: [ What fish eats fish poop ]

Many people like to raise fish at home. Although they are very ornamental, cleaning fish feces is a hassle. Therefore, many people often add a few fish that eat fish feces to the fish tank to reduce the production of fish feces. So what are the fish that eat fish feces? Let's learn about them together.

1. Scavenger

The scavenger is an omnivorous fish that likes to eat algae, benthic animals and garbage in the water. It can also swallow a large number of fish eggs and fry. It is the most common and loyal "cleaner" in the aquarium.

2. Chinese mullet

The mullet has a peculiar shape and bright colors, especially the young fish, which are unique in shape and colorful. In Southeast Asia, it is known as the "Asian Mermaid". The mullet is not only beautiful in appearance, but also has a variety of diets, and can eat any food in any state.

3. Goldfish

Goldfish do eat their own feces, because fish feces look like water worms when floating in the water, which is a kind of food that they like to eat. But goldfish do not swallow feces, and will spit it out again if it tastes wrong. However, goldfish have a very short memory time, and after they forget, they will repeat this action again until the feces are ground up, thus giving people the illusion that they like to eat feces.

4. Ratfish

Corydoras are a large family with hundreds of species, but most are well-known and are famous ornamental fish. They are bottom-dwelling fish with strong disease resistance, strong appetite, and are not picky about bait or water quality, so they are very suitable for novice breeding.

5. Grass carp

Grass carp also eat their own feces, which is related to the incomplete evolution of their digestive system. If they just eat grass, they will not grow up. Therefore, grass carp often excrete the food they eat first, and then eat it after a few days of fermentation. Some grass carp will eat their own feces several times, repeating this process to fully absorb the nutrients in the food.

6. Carp

Silver carp mainly filter-feed on floating plants and animals and the feces of grass carp. In addition, the carp in some ponds are particularly fond of eating cow dung because buffaloes often go into the water and excrete large amounts of feces.



In general, there are many fish that eat fish feces, such as bighead carp, black carp, crucian carp, etc., but everyone should understand that no fish is born to love to eat fish feces. They will only eat it when food is scarce. Therefore, it is unrealistic to rely on breeding these fish that eat fish feces to clean the fish tank. Generally speaking, strengthening filtration is the most effective way to clean the fish tank.