Dang you can skip alot of those steps next time. so get a 5 gallon. thats the biggest you want to go. your yeild comes from your light not your pot size. the rule of thumb is 1 pound per 1000 watt bulb. you can have 50 plants and one 1000 watt or 4 plants and one 1000 watt it wont be much more then a pound either way you go. the light only gives so many lumins.