Of course. I think with the tank at my work which is a 260g the only reason the cichlids have been fine with so many other species is because the size of the tank, don't know what species I have here, have to get some pictures maybe someone here can help identify them so I don't know how aggressive the actual species are either, I know with 1 type when the owner brought them in there was 3 and the dominant 1 killed off the other 2. I have since told him NO MORE CICHLIDS IN A COMMUNITY TANK. There are the goldfish looking barbs, Loaches, tinfoil barb, an angelfish, danios, 2 parrot cichlids and my other 2 that are cichlids but I have no idea what kind. Back too the Angels and personality though, thats probably why the guy at the petstore told me sometimes 2 females will fight, as though i have found to not always listen to those at petstores....