Join Date: Sep 2013
Location: Northfield Minnesota
It works in a 5 to 10 gallon tank. You can have two or 3 in the 20 gallon so the water is filtered equally. At least that's what I would do because bettas hate fast movement and at times I have to even lower the bubble power on these little sponge filter. Lol
15 gallon: 1 Pea puffer, 5 harlequin rasboras, 5 neon green Rasboras, Clown pleco, Shrimp.
10 gallon: 2 betta's and a snail
10 gallon: 1 Pea puffer, two Guppies and 6 Panda loaches and shrimp.
5 gallon: Red Cherry Shrimp and snails
5 gallon tank: WIP tank
37 gallon: 2 F8 Puffers 7 bumblebee gobies.
My journal: https://www.bettafish.com/144-journa...ournal-46.html