What is the recommended minimum tank size for housing a small school of X-Ray Tetras?
Answer
10 gallons
For maintaining a small school of X-Ray Tetras, the generally recommended minimum tank size starts at 10 gallons. This volume provides adequate swimming room for the suggested minimum group size of six to eight individuals. The tank must also be well-established, meaning it has completed a proper nitrogen cycle, and should incorporate features like dense planting or floating vegetation to help the slightly timid fish feel more secure.

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X-Ray (Pristella) Tetra Care and Breeding - YouTube
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