I had 30 plants under a 250w for 4 weeks (ended 2 weeks into flowering) so I had to keep the pots small to keep them close together. They ended up growing slow vertically, but very dense, and quite a few leaves that would stick strait out for a good 10" or so. I noticed that I didn't have any long horizontal shoots with water leaves on the 6 plants I put in larger pots. A week after I clipped all the long horizontal leaves off and started using a 1000w, they looked so much better.

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In Soviet Russia, Marijuana grows YOU!