How many fish can a 20-gallon tank hold?

Answer A standard 20-gallon fish tank can hold 15-20 small fish. A good rule of thumb is to have one gallon of water for every inch of fish in a tank.Source:Virginia Institute of Marine Science: Estuarine... Read More »

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How many fish can live in a 55-gallon freshwater fish tank?

On One Hand: Fit One Inch of Fish Per GallonThe usual advice for the number of fish that can fit in an aquarium is one gallon per inch of fish. So, a 55-gallon tank would fit 55 fish that are one i... Read More »

How many fish can be in a 20 gallon fish tank?

The general rule of thumb is 1-inch of fish per gallon of water in your aquarium; a 20-gallon aquarium could hold, at most, 20-inches of fish without overcrowding. Factors influence this calculatio... Read More »

How many fish fit in a 10 gallon tank?

It depends on the size and type of fish. For small fish, such as neon tetras and platies, 1 inch per gallon is a general rule of thumb. Large fish like oscars and plecos generally need three or fou... Read More »

How many fish are in a 10-gallon tank?

One inch of fish per gallon of water is a good rule of thumb for most aquarium setups. Additionally, there are specific types of fish that may have more demanding needs or are more territorial. The... Read More »