well, how many do you think? I have 2 5 gallon "spawn tanks" and then right now I have 2 10 gallon tanks and another 5 gallon for the adults (divided). I have a 150 gallon, not yet setup, that will be divided with acrylic into 3 growout tanks, and I also have a 29 gallon for growing out, BUT for now I think the 2 5 gallon spawn tanks are the GOAL, to keep the fry nice and healthy, seems like I will be investing in more snails in the near future, where do you keep your snails during the day? Another tank? with the adults?