Couple of observations-

Superthrive is pretty awesome, but you'll want to discontinue when you flip the lights- it'll extend flowering time, and lower final density. I wouldn't use a 1/4 tsp / gal on an extended basis myself- I use 1ml/g for veg, and save the big doses for transplant. Don't kick the bottle over- it'll reek for months.

You'll have trouble lighting 8x2.5 with a single fixture- I'd slap that 600 into a 5x5 room, ideally. To get good light intensity at the ends of the room, you'll need to use a mover. If you go for the mover, get the Light Rail- The slip chain designs never gave me any peace.

When ya talk about heat management, it's helpful to know what the reflector design is- this can have a huge impact.

If you're going to rehab some old hi-boy MH fixtures, go the bucks for good lamps ( Sunmaster Cool, Hort Blue). Also, remember to burn those lamps sideways! The hiboy design is great for Walmart- less so for your closet. Also, those things weigh a ton.
rhizome Reviewed by rhizome on . Super Thrive? My HPS light (which I have to wait to use until flowering, right? I so want to set it up!) came with a few bottles of Super Thrive- is this stuff any good? I says it should be used in addition to fertilizer. Please advise- I feel like I should be doing something more than just looking at them :jointsmile: My three little blue haze are about two weeks old, and I just put them in big girl one gallon pots over the weekend. They experienced no transplant shock; they seem quite perky, but I Rating: 5