I'm starting a new 37g and I've been fascinated by these guys. I want to get a pair of them for sure for this tank. However, it seems if I get them I can't add any other dwarf cichlids, is that right? I'm open to any options so far I have a Dwarf Gourami and harlequins as potential tankmates for these guys. Are there are any cichlids that you guys think go well with them? I don't want anything that is going to make them uncomfortable.