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Care Guides · Jul 12, 2026

Betta Fish Tank Size: What Size Tank Does a Betta Need?

Bettas do not belong in bowls. Here is the real minimum tank size for a betta fish in litres and gallons, plus heater, filter and tank mate advice.

Guides · Jun 21, 2026

Odd-shaped aquariums are tricky to measure. Here is how to calculate the volume of hexagon and corner fish tanks accurately.