The Nano Reef Tank – Should You Keep Fish In Them

The answer to this question depends upon your definition of a nano reef tank?

To me a nano reef tank is an aquarium which is less than 20 gallons in size.

There are some people which define a nano reef tank as being less than 55 gallons, personally I would classify these as micro reefs.

For the purpose of this post I will base the definition of a nano tank as being less than 20 gallons in size.

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