I have seen this in a couple of my plants in different grows but havent totally pinned it down, what I can say is that I havent had this problem since I started using Great White (there are several on the market but I am only familiar with Great white) and I add canazyme to about every 3rd 5...
that isnt a bad idea at all I have one hlg qb i bought previously I will keep reading and looking for the final answer I am thinking of a couple other options, the fluence vypr-p
and then ricman suggested the optic 600h or 650s wich also looks good
ya i am not the platinum has never lived up to the advertising
I am toying with a fluence vypr-p but they are expensive
i have a buddy with one and it is nice
sorry the vivosun is a 315w not a 1000 and the other tube i have is larger but i cant find the spec on it anymore i am rattling off my numbers all wrong
so in one room I use just the vivosun wich is great but not enough in the other room I have a hanging tube with a 1200w lec and the led light pictured
I plan on moving the led to the room with the vivosun and replacing it with ???