Hi I am thinking about starting up a small 20g african cichlid aquarium I want to have an exact biotope, the fish I was interested in is the jewel goby cichlid, I was wondering what lake this fish comes from other fish from the same lake that can fit in a 20g, and also the kind of rocks found in their natural environment.
also is pool filter sand okay to use?
also is pool filter sand okay to use?