You went from HPS to MH?

Yes the extra lumens are great but in flower you are better off with the HPS. The color shift in the light is what affects the flowers. The THC percentage will be less as well. MH is best suited for the veg cycle and HPS is best for the flower cycle.
Zandor Reviewed by Zandor on . strangely formed buds my plants are at 5 weeks 12/12. they are NLxBB, I recently switched from a 250 hps (what I used to use) -400 hps/MH for this grow. I am growing in a 1 m square grow tent and using bio bloom 2.5-6.5-3 or something close to that. the light has been no more than 12 inches away at any time and is generally closer. most of the buds are coming along nicely...but on one of the plant the buds are looking strange. look at the pics below (2 are normal 1 is wierd). this hasn't happened to me before now Rating: 5