a few more things.go with the 18/6 dont do 24/0 for more then 2 weeks. You wull need to put them plants into a larger container i suggest 5 gallon bucket . This will allow the roots to dig deep for a stronger better yeidling plant.put it into 12/12/ when plant is half the size you want it to be when harvested. or around 6 weeks. also top at 4 node to give you couple main colas.somtimes i top at. 4 then top those at 4 and so on intill about a week before 12/12/... but everyone has there own way.