i just want to know cause i have a spair 1. if i cant have any marine fish in there ill just sell it and get a new bigger tank but if i can, can i have any tangs cause they are really nice fish or ill just have a couple of black and white clowns. i have been offered a breeding pair which is good but ill have to research on breeding clownfish. i have a heater for a saltwater aquarium and i will buy everything else