well since its only 37 gallons i would use a biowheel.
i like the gymnogeophagues too-i have a group of "blue neon" but i didnt realize when i bought them that they should have a cooling down period in the winter-wish i wouldve known that before i got them lol
i like the gymnogeophagues too-i have a group of "blue neon" but i didnt realize when i bought them that they should have a cooling down period in the winter-wish i wouldve known that before i got them lol

