When considering a small community tank that includes X-Ray Tetras and bottom-dwellers like Corydoras, what minimum tank size is suggested for overall inhabitant comfort?

Answer

20 gallons

The need for a proper minimum schooling size (six) combined with other species like Corydoras suggested a minimum of 20 gallons might be necessary for the comfort of all inhabitants.

When considering a small community tank that includes X-Ray Tetras and bottom-dwellers like Corydoras, what minimum tank size is suggested for overall inhabitant comfort?
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