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the only difference between this grow and my last ( which was great as the picture with the 2 0z kola next to the peroxide bottle ) was the humidity. last grow was 50% humidity and this one is 15-30%

fan just makes them move a bit not much though. but i did read that low humidity can cause closing of the stomata and that causes low metabolism rate to the point where it'll lock all co2 and lockout of nutes.

well, i added a humidifier with a auto regulator set at 55% to 65% leeway, i hope this works, haha.

whats your humidity? some strains take higher humidity for the stomata (openings on the bottom of the plant that allows the intake of co2 and other gases ) to stay open otherwise the metabolic system shuts down and can cause false deficiencies of the main 6 high demanding nutrients, nitrogen...

whats your humidity? temp? dirt mixer? what is the ratio or pecentages it says on the miracle grow box for the nutrients? but from what it looks like it could be nitrogen deficiency or a cal/mag deficiency or it could be all 3. also how often is your watering? overwatering could also cause this.

got any pictures? but sounds like you may be overwatering them. depending if they are clones they dont need much water just moistened dirt.

i just looked up humidity. yea thats what it is. it specifically says that the tips will brown then the margins with get dry and cup. which is exactly what is happening. thank you LarryOG for bringing me to the light. haha, i'm going down to true value to pick one up ASAP. it wont help the...

oh no, thats just for comparison. closest thing i had to match it. i use vinegar if needed to neutralize PH. i havent used it in this grow though.

this is my setup. that dehumidifier isnt running nor has it been ( front left corner ) i raised my lights about a foot and a half above them now and i put plexy-glass in my ballasts with dual exhaust at the end of each ballasts ( there is two total ) each ballast has 2 65w CFL 6500k. i...

depending on your PH level you may have to raise or lower it. if its 6.0 or below then molybdenum, calcium, phosphorus, and magnesium gets locked out. also check to see if the dirt is too wet or too pact down that could put a stress on the roots nutrient uptake of boron, iron, manganese and...

i think it may be potassium K deficiency since my humidity is always low. but its honestly my second grow and its winter time here. my last grow ended beginning of fall.

well, my plants went from being perfect to almost dieing within a day and a half. they are yellow edges curling upwards that feel like they're burnt with brown spots on the edges of the leaves. i didnt add any nutrients. i'm using miracle grow organic mix, sphagnum, perlite, and osmocote mixed...