I have 3 male guppies coming from Ebay. Where do I put the males? In my 6.5 gallon tank. Do I keep the adult guppies in the 6,5 gallon tank, if so how many guppies can I put in my 6,5 gallon tank? Four male guppies for each tank. Then when they give me baby guppies, do I wait to their grown...