I spent the extra $$ on the Hortilux bulb with the extra blue and did NOT notice a difference in flower. That could be because the blue is for the veg cycle. (got ripped off a little since i don't veg under HPS).

I am very happy with the Botanicare additives. Molasses at 1.5 tablespoons per gallon has given me some decent results.

I use Sunblaster florous for veg and they are fantastic. Relatively inexpesive at $32.00 cdn.

have fun and stick with it.