I just picked up 6 black cons tonight from that pet place. They are all roughly 1"-1.5" (hard to tell really). Looks like I have half male and half female but still not sure on that. My question is, What size tank should I move these guys to when I decide to breed them? If I get 3 pairs out of it then great! But I was thinking maybe a 55 gallon tank and just divide it up to separate the pairs. What are your thoughts?