Quote Originally Posted by imnormalman
thanks...any other advice from other gorwers that are more expereinced than me...would like to get more views on the cross contamination of light...
What do you mean by cross contamination?
Light leaks during the dark cycle are BAD.
But light of other wavelengths hitting the leaves during the 'day' is fine! I mean, as long as there is enough light of the CORRECT spectrum, more light isn't going to hurt! Some growers like to run those systems that hold a HPS AND a MH in flower!
Increased bud density also comes from the availablility of carbohydrates in the soil. Stuff like Sweet for carbs. Then there's other supplements like the Yeag said, that 'gravity' stuff from Humbolt, I think it's a special type of sea kelp that is very beneficial to plants during bloom, topmax has the same species but it might be a different source- my fertilizer guy SWEARS by gravity, I have had success with various combinations of topmax, sweet, and regular molasses and just plain Neptunes Harvest kelp extract.