room dims are 23" x 30" x 6' temp in the room is 75°f i was wondering if i need a glass shield to block the UV i have a fan blowing accrossed the plants running dwc with very low nutes to see if the plant recovers tried normal and it didnt seem to help the light seems to be the last thing that...
i tried the hand test and its cool but the leaves of my plants are clawed and one plant looks dryed up a little
400w metal halide right now its about 19 inches away
running DWC
i agree the fans you linked would be much better then pc fans but the poster didnt ask what can i buy to move air he asked if pc fans would work to vent his light and i believe that if he keeps the ballast out of the room it will with no problem 150 hps doesnt build alot of heat a good pc fan...
what would be the difference in pHing twice when i could just do it once after the nutes and 5.2 is what is recommended in the FAQ as max nutrient absorption but the point being i cant maintain anything under about 7.5 to 8 it always rebounds
and budless for my soil plant i dont pH the water...
i use collidal silver from the supplement store costs like 5 bucks soak the seeds in it for 24 hours then germinate as normal im 4 for 4 so far might be a quinkedink but so far so good
finally got the ballast wired up and i can confirm MH works well with the MV ballast only trouble was sylvania blubs dont work with it but phillips worked great now i got a nice little 400 watt MH for 40 bucks total