i have 2 female blue rams. i started with 3 but the male died a day after i got them. that was 4 months ago. they are in a community tank with dwarf gourami's, platty's, mollies, glo fish and 2 southamerican bumblebee cat fish. my question is could i introduce another south american cichlid into the tank? i don't know if that's a good idea since everyone gets along so well in the tank. lots of plants and a few hiding places. the tank is 53" long so plenty of room to roam. ph is at 6.6 to 6.8 thanks for any advice.