I hope to open my own pet store in the future and specialize in fish and reptiles but that is several years down the road. In the meantime I want to gain experience keeping and breeding fish. If I plan to breed a good chunk of my own stock for the store, I need to know how best to breed them. So for those of you who breed fish, do you dedicate a tank to each species? What size tanks do you use for breeding and rearing fry?