well what I did the first time is I put 4 in a1g with filter. took them out and waited till the little ones started free swimming and I gave them a mixture of crushed flack food, dried brine shrimp, tubifix worms, algae wafers, and sera micron(powdered fry food). all that is crushed up. and the 1g had a layer of gravel then marbles with fake plants (cabomba) the 3 inch densely packed and then I put a layer of moss that was washed and dried from around my house. the rest gets filled with moss and only a little space is left for them to swim in. I tried to do it with a larger scale with a 10g but haven't seen anything yet so I might do it again with the 1g.