yeah you might want larger pots if you are planning on growing moms in them. more room = more roots = stronger plant. you cant over due it on pot size just whatever fits best for your set up. and depending how you prune them and how tall they get you could manage 8 plants. if you want more bud i would suggest growing the full 8 but only a foot and a half or two before you flower them. good luck looks like you have your work cut out hope to see more pics tho