Hey everyone! Newbie here, and the board looks great! I was thinking about getting a species only cichlid tank, and I saw a beautiful male Apistogramma cacatuoides. I was wondering, can I have a single male without any females? I understand your supposed to have 3-4 females with a male if your going to have females, but would it be healthy for the male to be by itself? Also, what type of tank would be best for him? I am thinking about getting a 15-20 gallon, is this a good size? Thanks everyone!