Depends on your setup. What dimensions? How many tanks? Well structured?
81x36x45cmView attachment 13871
110litre tank, plants still growing and will be adding some more big plants in the background instead of those that are there rn.
Right now there is no fight between them and both mind their own business, but they're still young, so..
What would you recommend? Getting another female and having two pairs, or getting him a new home?