My Goldfish Is Turning Carnivorous? What Should I Do?

Do goldfish eat meat? Do they solely eat meat? Do goldfish eat other fish or one another? What should I do if that’s the case? How can you tell if your goldfish is turning into a carnivore? There has been a lot of talk about this in the fish-keeping community.

My Goldfish Is Turning Carnivorous refers to the phenomenon where a goldfish, which is normally herbivorous and feeds on plants and algae, starts to exhibit carnivorous behavior and begins to consume meaty foods like worms, brine shrimp, and other small prey. This change in diet can be due to a variety of factors, including changes in their environment, hormonal imbalances, or simply a shift in their natural feeding behavior.

So let’s find out if goldfish are considered carnivorous or how to identify if your goldfish is evolving into one.

Are Goldfish Carnivores?

Carnivores are meat eaters who require live foods for growth. A carnivorous animal’s digestive tract is unable to digest plant-based food. These species can consume plants, but unlike other fish, they cannot get their nutrition from them.

Are Goldfish Carnivores

Therefore, goldfish are not carnivorous creatures because they require both meat and plant-based diet for proper growth and development.

Additionally, it would be best if you didn’t keep your goldfish in the same tank as a predatory fish like a betta since this can cause extreme hostility in the tank and possibly result in physical harm to your fish.

How can you tell if your Goldfish is Evolving into a Carnivore?

Since goldfish will eat nearly anything, it’s not unusual to see them nibbling on flesh or devouring a dead fish. For a balanced diet, they require both plants and meat. Additionally, if you see that your fish is acting aggressively, it is OK because goldfish are naturally aggressive. However, if they begin consuming snails, shrimp, or other live fish, then it indicates that they are turning into carnivores.

Goldfish is Evolving into a Carnivore

My observations lead me to assume that as goldfish become bigger, their viciousness increases. And they frequently begin devouring other aquatic creatures that are alive.

Why do Goldfish eat other Fish in their Tank?

Goldfish will consume nearly everything that fits into their mouths, as was already noted. Whether they are related or not, they will devour everything that will do in their mouth. However, a bigger fish in the aquarium will occasionally be eaten by goldfish. This is mainly because they need their own space, and if they feel crowded, they start acting aggressively.

Why do Goldfish eat other Fish in their Tank

When they add additional fish to the tank, many individuals see aggressive behavior in their goldfish. Because goldfish are territorial, new tank mates could get eaten if the tank is overcrowded. Most of the time, they will attempt to drive them away first. This will serve as a suitable warning that you need to take action.

How can you stop your Goldfish from eating their tank mates or one another?

Your goldfish shouldn’t feel compelled to consume the other fish in the tank if you provide them with the correct habitat.

Feed Them the Appropriate Amount of Food

Because goldfish don’t digest their food like other animals, it’s crucial to ensure they get the proper quantity. Because goldfish don’t have stomachs, food doesn’t remain in their bodies for very long before it is discarded. Feed them three times daily, cleaning up the food they don’t consume in under two minutes to ensure you’re giving them the proper quantity.

Overindulging goldfish runs the danger of getting ill. You also want to feed them appropriately because their tank mates will start seeing it as dangerous. They could try to consume nearby fish if they believe there is a lack of food.

Give Them Enough Room

Goldfish may become anxious and consume other fish to clean the area if they don’t have enough space. Ten gallons of water are required for each goldfish. Therefore, you will need 20 gallons of water if you put another goldfish in your aquarium, and so on. There may undoubtedly be difficulties if the tank is overloaded.

Give Them Enough Room

The amount of waste will impact the water quality that goldfish create each day if the water is overpopulated. Aggressive behavior in goldfish is a result of their poor living conditions. For your goldfish to remain amicable with one another, ensure they have the appropriate amount of room.

Split the bully apart

Food or hiding places will only help if you have a much more hostile goldfish than the rest. You could be forced to keep the goldfish isolated from your other fish. The safety of the other fish is at stake if you let that fish remain in the aquarium. If a solitary tank is not feasible, you will need to locate the aggressive goldfish in a new home or separate tank where they may live independently.

Look after sick or injured fish

Goldfish may occasionally try to consume them to get sick or damaged fish out of the water. In this situation, you must confine the ill or hurt fish. This will give them enough time to recover before it is safe for them to return to the goldfish’s environment.


The majority of goldfish are not malicious. They may become close friends with many kinds of aquatic life and genuinely love the company of other fish. Their new pals must not have mouths smaller than those of goldfish. Goldfish like eating and are constantly looking for fresh snacks. There is a significant likelihood that a fish will be consumed if a goldfish opens its mouth and the fish can fit inside. Even though most fish feel comfortable around a goldfish, these attractive orange fish have a history of misbehaving under unfavorable surroundings. They could even try to consume the fish in their aquarium to get more room. Therefore, always keep a clean and roomy tank, and your goldfish won’t likely attack their buddies.

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