What's my problem?

Not really my problem but a fellow R.I.U.ian. What's the problem with her

the interveinal chlorosis is possibly due to low ph/magnesium lockout. Not 100% on this one. the "canoeing" is possibly from heat issues and low moisture.

Whats the temps in the grow area?
Soil or hydro?
Did you check your ph?
what nutes are you using?

use half strength cal mag. wait a week. test runoff

Yep^^^^^^^^^^^^^^^^^Spot on advice !!!!!!!!!!!!

I'm not sure on specs but I told him the curl up was from heat and to bring his light up or put a fan right between the girls and the light. Probably should have mentioned an exhaust fan. Any who, I thought it kinda looked like a mg problem but isn't that just more of a discoloration and it doesn't seclude itself to just in between the leaf veins. To me this also looks as if it's burning through the leaf in spots.

you don't give much info. hard to say...

I showed you every thing you needed to know(see). I guess I just figured some one who's had the same problem would have some insight. Kinda like how I didn't need to know what he was feeding, soil hydro, ph, or temps to tell it was heat stressing just the picture

Silky Shagsalot said:

you don't give much info. hard to say...

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well, details are a little important. for instance, the cause of the problem, is (imo) more important than the problem it causes. if an issue is caused by nute lock-out, due to improper ph, then there's your cause. if you simply treat an issue, mag. def. for instance, by giving cal-mag. well, that's not gonna help, because the improper ph will not allow the plant to take in the added mg. so, details enable others to help you find the cause, and not just treat the result.... but whatever, lol...

Leaf cupping. Over watered. Spots could be potassium def

don't wish to shoot from the hip. important info missing. the pic looks like P def. to me, but have your amigo check that ph. alkalotic I bet.

inhaleindica said:

Leaf cupping. Over watered. Spots could be potassium def

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In my experience,leaf cupping is the plant trying to retain moisture.(either from high temps or low humidity,too close too light source)

One of my white russian phenos has had intervenial chlrosis on the bigger fan leaves almost its entire life cycle and has been kept under control by giving extra CaMg. with EVERY watering. The thing cant get enough of it!

But as stated CaMg could be getting locked out by low ph so I would check the runoff water's ph if running soil.
Check res if running hydro.

My bet is ph,humidity,and air circulation issues. It wont hurt giving a little extra CaMg until the ph is checked.

For raising humidity. I soak a towel in a bucket, then lay the towel over the bucket and place a fan in front. resoak daily.

I did this with the towel,raised my lights a few inches and the "Leaf cupping/canoeing" went away.

try adding some Epsom salts like 1/4 teaspoon per gal, with a combination of cal mag. mix with humic acids so it makes them more available to the plant. its like a chelation agent If you know what that means.