Will a pearl gourami be a good tankmate for CPD's?
How about a pair or rams or apisto? Would probably be more suitable for that size of tank
I've had CPD's before and really love them. They were in a shrimp tank with themselves and some Daisy's ricefish along with the cherry shrimp. This is why I was wondering about the pearl gourami: is their mouth big enough to chow on a cpd and are they aggressive towards smaller, timid tankmates?You'd have to be kind of careful with centerpiece fish... CPDs are teeny food fish.
Maybe you could try a dwarf gourami. Just one, though.
Another option would be a peaceful betta, if you can find one.