I have a 30 gallon I think that houses a jewel cichlid and a m. callainos both are adults. I want to add a few more as I have recently rehomed other fish and now with only the two the tank looks totally empty. What are some other fish that I may keep in this tank. Here's a pic. The cories and the barbs have been rehomed but the briggs are still happily there the fish don't even pay them any mind

