A rule of thumb for determining aquarium size is to use 1 gallon of water per inch of fish. This rule says that for each inch of fish you’d like to keep, your tank should be able to hold 1 gallon of water.

What size aquarium should I start with?

For a beginner, 5 gallons is the minimum recommended tank size, though a 20-gallon tank or larger is even better.

How do I choose an aquarium tank?


Quote from video: So sometimes what's best to do is figure out what your budget is for an aquarium how much do you want to spend on this aquarium all set up all things considered.

Does tank size determine fish size?

Fish grow to the size of their tank. At least this is what a lot of people believe. There are a variety of factors that can limit a fish’s ability to grow properly but the size of the tank isn’t one of them.

What do I need to know about my first aquarium?

Avoid tanks under 10 gallons if you are a first-time aquarium owner. Small aquariums are far more difficult to manage than larger ones, as toxins can build up very quickly in the small volume of water. Temperature changes and water chemistry changes can also occur very quickly when there are fewer gallons of water.

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