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I recently changed houses and I think I now have an iron deficiency (here's the thread in the infirmary, with my growing specs and pics https://www.thcfarmer.com/community/threads/help-with-diagnosis.57806/). I didn't change anything except that since I water from tap, even though its the same...

Hi folks. I just started up in a new place five weeks ago, and am using exactly the same protocols in my last place and am having issues with yellowing of the upper leaves and a little bit of curling and deformed new growth on the most affected plant (see pics). At this point I have one tent...

Have any of you guys ever run 3 1000w lights off a 240v 20amp breaker? I'm moving to a new spot and there's only room in the fusebox for two 240v breakers. I want to run 6 1000's which means three per breaker. According to my math each light is running at 5amps (actually a little less) at...

Does anyone cool or heat the water they use? I often heat the solution I use as a foliar spray in order to better get the neem oil into solution, but I try and bring it down to room temp before spraying. For normal watering with or wthout nutes I use the coldest water I can get out of the tap...

So I looked through old threads and I couldn't find any that answered this question, my apologies if its been asked an answered. I have a 3 stage perpetual flower room that rotates every 25 days, which is perfect timing for this slow growing kush im running, which is at its peak at 75 days...

Anyone got brand reccomendations for RO systems? I've been just running a faucet filter for a couple years now, and although it seems to work well (I've never actually tested the PPMs--I grow in soil) it takes FOREVER to fill up enough jugs for a watering. I don't have a preference for whether...

I've always run 24/0 during veg as I always thought more time with light, more growth, but I was recently told by a friend that he sees absolutely no difference in total growth over time running 18/6 vs 24/0. I'd obviously prefer to run the lights less and save on my electricity bill, but I...

I've been taught, and it seems like the science on general horticulture suggests, that each generation of clones--meaning clones of clones, not rounds of clones taken sequentially off of the same mother--reduces the vigor of the stock. Does anyone know of any well done mapping of the timeline...

I just bought a tank, a regulator and a moniter. My flower room is a 4x8x8 tent, although I'm only using a half of that at the moment, so for volume purposes its a 4x4x8 at the moment. Air is pulled out through a suspended filter, over the 1000w and vented. There is currently no active system...

I've growing Kush in soil and I'm nearing the end of the flower, just about to start flushing. The buds are nice and sugary and had gotten decently purple considering the warmth of the room, but a couple days ago they started ton have a growth spurt. They're not herming (i dont think) but it...