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Not sure what's going on here. At first I thought it was just that the tallest parts of these plants are too close to the light. But now I'm wondering if something else is going on. I've looked through all of the plant nute deficiency pictures and don't see anything like this. The...

Was going to buy a homebox but my space just isn't big enough, I'd have to cut the polls to shrink the thing by about 8"... So instead I'm gonna make my own. But which material to use? Foylon OmniFlect Sun Ultra Mylar White Poly My setup is in an attic so winter temps will be down to the low...

The homebox website says that their small tent is suitable for 250w. Anyone have a guess why that is? I'm hoping to squeeze one into my attic so I can use my 400w hps this winter. Heat shouldn't be much of a problem since it gets cold up there and I am venting the light. My hope is that the...

Started from bagseed outdoors, moved indoors when she started to flower on her own. Everything is going great, I'll have to harvest in the next two weeks no matter what (visitors arriving soon) so it might be a bit early. Trichs: 10% clear, 75% cloudy, 15% amber. I've flushed and now only use...

Had a slow transition to flowering, she was moved from outside to inside once she started to flower on her own. Then seemed to go back to veg for a week or so. Close to 60 days flowering. The buds are forming nicely but not many trichomes yet. They really just started forming a few days ago...

This is my 2nd grow, first was a few years ago and was pretty successful. Things this round are going pretty well but am now having a few small issues and am hoping for advice. As you can see by the pics the leaf tips are a bit burned and some leaves are pointing down and some are curling...

I know that when flushing to use water equal to 2-3x the size of the pot. But when growing indoors what do you all do with the runoff? Obviously the tray can't hold that much runoff. Do you take plants outside, put them in a sink, siphon water out of the tray, put the pot on top of a bucket...

How often should one replace the bulb in a grow light? I remember reading somewhere that the bulbs eventually put out less light and should be replaced before actually burning out. Do people test with a light meter? Is it measured in footcandles, lumens, or what? Does the spectrum generated...