IMHO I think it's something to do with a possible cal/mag def...
What I'd do: Flush the plant (puor 2x the amount of soil you have in the pot, through the soil) and then after that, I'd water with just regular water and add like 2 tsp of epsom salt (get it at wallgreens or something, way cheap!) to the last gallon of water that your about to give her. I think you should be fine after that.
Or, if you've got money to spend, just flush then go get some cal/mag from your local hydro store and read the bottle. I bet that'll clear things up.
could be some type of nute burn, are they getting brittle at the ends, like dryin right out. Whats your nute strength? Might be worth flushing them with 1/2 strength to see if it stop or keeps progressing.
Anyone else shed some light?
IMHO i think it's nute burn. i have the same sort of thing going on with my current gro. it's confusing because some plants are fine and some are not. it's baffling. i wonder if my soil was too hot to begin with.
it might be, i have no idea, cause some plants respond different to nutes than others, so i have no idea.
i think it's probably a mag def. because nute burnt leaves turns yellow i'm pretty sure.
the problem with a supposed nute deficiency is that we'll try to compensate for it with nutes, and if it's actually not a deficiency we'll be compounding the problem.
do you think flushing like hookedonchronic said would work?
ah thanks, so just flush once? and then flush again with the epsom salt
so if i have a 3 gallon pot, then i should flush with 6 gallons? and on the last gallon add the salt?
Unless you do what I said, then you won't hurt your girls at all... This is the reason we FLUSH... It prevents this from happening...the problem with a supposed nute deficiency is that we'll try to compensate for it with nutes, and if it's actually not a deficiency we'll be compounding the problem.
personally i'm scared of flushing. i had a gro and flushed alot and i got a REAL nute deficiency and my stems turned red and my plants got all yellow. it was fast and freaky. keep in mind that when you flush you are not only getting rid of the bad stuff but you are also flushing good stuff out too.
i'm not saying hooked is wrong at all. maybe you do need to flush, just be carefull.... and don't get carried away.
yeah it's mag def.
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just found this site, it's a good read.