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One goldfish on it's own needs at least 20 gallons (75L). It's not just about their potential size, which is big, but the fact that they are very messy fish and produce a high amount of waste

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12y ago

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Why could a small goldfish die in a small tank just for him?

Well it'll help if it has water in the tank?


Hi i have a 9 leter tank and 2 small goldfish do i need a filter?

Yes, goldfish are very messy. Goldfish need 10 gallons per fish, you actually need a 20 gallon tank or about a 70 liter tank for 2 goldfish. But the small tank will do while they are small, you will need to eventually get a larger tank.


Can you have a small yellow goldfish in a small tank?

If the goldfish is a fancy variety, it can live alone in a 20 gallon tank. Goldfish do not belong in tanks any smaller than this as they grow very large


Do goldfish grow bigger in a bigger fish tank?

Yes, the bigger the tank, the bigger they will grow. Yes. The more resources given to the goldfish * more oxygenated water, * aquarium plants, * room to swim, * cleaner environments, the larger the fish will grow


Can small young veiltail goldfish and small young common goldfish and black moor live together in a common tank of 1 gallon?

No you schould not have that many fish in a one gallon tank. Thats the size of a big betta bowl. And because they are goldfish it is worse their poops are toxins


Can an oranda be in a tank with a small yellow goldfish?

Since an oranda is a type of goldfish, they will be fine together


Will goldfish grow to the size of their tank?

No, goldfish will not grow to the size of their tank. They will continue to grow and may become stunted or unhealthy if kept in a tank that is too small for their size.


Where do small goldfish like to live in a glass bowl or a tank with air?

Small or Big it should be kept in a huge tank with Filter and Oxygen 10 gallons per Goldfish At least


What are the best care practices for keeping a goldfish in a small tank?

To properly care for a goldfish in a small tank, it is important to regularly clean the tank and change the water, provide proper filtration and aeration, feed the goldfish a balanced diet, and monitor water temperature and quality. Additionally, ensure the tank is not overcrowded and provide adequate space and hiding spots for the goldfish to thrive.


How many goldfish can you keep in your 20liter tank?

None. A single goldfish should have a minimum of 75L. You would be better off keeping small tropical freshwater fish.


If your goldfish is about 2 and a half inches long how big does its tank need to be?

Regardless of the type or size of goldfish the minimum acceptable size of an aquarium for a goldfish is 30 gallons. Buy a tank that is at least 30 gallons if you plan to have goldfish. You can comfortably fit 3 goldfish in a tank this size but no goldfish in a tank any smaller. Goldfish are essentially pond fish and need lots of space to swim; they will not thrive in a small aquarium.


How big is a 7 gallon fish tank?

It is classed as a very small tank and could only house about 5 inches of fish. (1 goldfish is a 10 inch fish)