I keep a 75 gallon aquarium with an Oscar. I have a 65 gallon aquarium with 2 Bps. a babay convict cichlid a striped peacock eal and a seganal bichir. I also have a baby JD in the 65 but I am moving him to a 55 gallon aquarium when I get one this summer. I have a unstocked 40 gallon(still deciding). I also have an empty 20 and 30 but I am trading the 20 and 30 for a 55 gallon aquarium for my JD. I know that the 65 sounds overstocked. I might upgrade if the BPs have good genetics and get big. If the BPs do not have as good genetics and get under 6 inches I will not upgrade. With Bps it really depends on genetics.