Damsels are cool, a bit territorial, but the yellow bellied and yellow tail are nice( BTW both stunningly blue!), I have one of each. They will act similar to a cichlid in that they dig a hole if you don't give them their own place to hide. they take the sand into their mouth and spit it somewhere else. They are beautifull though. Mine don't fight too much, not enough to do any damage to each other, but will sometimes chase each other. :joy: