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MImedMJpatient
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It looks like heat stress IMO....... raise you lights. add a fan or two.
I keep my lights a minimum of 24 inches away, and sometimes certain strains (a perfect example is Sweet Seeds Mahan Ram) are more sensitive and more distance is needed. I'm at 30 inches with my 1000 watt HP horizontal shields. It is a heat problem- that's a no brainer- raise your lights a minimum of 6 inches or more- and it will improve.
Also, too many fans along with the heat from the light will dry the leaves out eventually and this can contribute to your issues. It's all a fine line sometimes.....
When was the last time you flushed them?
I use BM on all my indoor grows and have never had it do anything quite like that... although I have some clones at the moment that look very similar, but I believe it is from a Ph issues caused by the Black Gold soil I'm in.
.5ml / gal is what I normally use on Sour Diesel and have great results. Use it at the start of 12/12 and do it 2-4 times consecutively. Too much and you'll end up with some extra hairy nuggzzz. Good luck homie.
the pics on the 1st page are heat/humidity related not a ph issue. if u dont have a fan blowing over the tops get one and also raise your lights just a bit.
According to Sunleaves, my use of its Guano qualifies as a heavy feeding schedule. Could I be experiencing a salt induced nute lockout? I DO flush thoroughly but I am currently using a combination of Jamaican bat guano (3 TBSP per gal tea) and General Hydroponics Floralicious Plus Concentrated Organic Enhancer. Occasionally I use a little Superthrive or dress the top with earthworm castings.
This is right about when I started having some issues with my first grow - about three weeks into flower.
Also, there is almost no potassium in Sunleaves' feeding program. The ppm is 1 or less for the entire cycle.
some rooms can handle it some cant. say your veg area is bone dry and then u stick them in your flower room that's 40-50% humidity it could cause a reaction. when they curl upward like that they are trying to make a smaller area either from to much moisture or to much heat. over time in bloom it may disappear completely. i don't think its a life threatening issue and if you raised your lights 6 inches and have a fan blowing over the tops you may see it go away faster.
...when they curl upward like that they are trying to make a smaller area either from to much moisture or to much heat.
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