1 Apisto, 0 Gudgeons. Or 0 Apistos, 1 Gudgeon.I have a 20 ga high tank
Thanks, don’t want to breed.1 Apisto, 0 Gudgeons. Or 0 Apistos, 1 Gudgeon.
In that tank size interspecies aggression is possible, especially from the Apisto towards the Gudgeon. In a longer tank (90cm+) with proper structure more and maybe both species would be possible, but not in a 60x30x45cm tank (20 high), as long as you only want to keep and not breed them.