i started a new grow as i got 5 oz off my last ww.i have been reading just about every forum on this site and learned alot.i have 15 clones now and only lost 2 and it was my very first time triing it.the people on here really know what they are talking about and how to teach others.i have been running my 600 on for 2 hours off 2 hours and i wanted to know if this would mess things up by stressing the plants.