Anyone seen this before?

What strain is that? I'd use half-strength whatever it says on the bottle....generally any fertilizer company is gonna want you to use more than you need just so it gets used up faster and you gotta go purchase a new bottle. Could be that it is a strain that is sensitive to nutrients or it could just be how that strain grows, lol

I would love to tell you what strain although I really can't know for sure. I was told they were Underdog clones. However, as they have grown up I've noticed that they look completely different from each other. And the other one doesn't have this leaf issue. So yeah, maybe it is a nute issue and this strain is particularly sensitive. Hmmm....I can back off the nutes a little.

Originally Posted by miijade

I would love to tell you what strain although I really can't know for sure. I was told they were Underdog clones. However, as they have grown up I've noticed that they look completely different from each other. And the other one doesn't have this leaf issue. So yeah, maybe it is a nute issue and this strain is particularly sensitive. Hmmm....I can back off the nutes a little.

Try flushing out the container of the one that has that leaf issue with about 2 gallons of just plain water. Also, are you using tap water and letting it sit out 48 hours to get rid of chlorine?

I had this recently on one of my clones but it leveled out. I put it down to a PH fluctuation. Try to keep it above PH 6.5 in soil, even in veg.

What PH has it been? Did it stay the same?

Hum, i see some discoloration in the background and the curl.
You might have more than one issue...hopefully not?
If you have the tools to test the TDS & PH... put your tree in
a larger container to catch the run off for testing and see what
the numbers indicate. Use clean water, adjust to 6.5 ph and note
what the TDS is, compare the numbers to the run-off after pouring.
PH should be around 6.0 to 6.5, TDS no higher than 1400 ppm's
consistently. Hope this was helpful

I have never heard of leaf deformities from ph and/or nutrient issues, but I am no master gardener.

IME, it is either genetic or a result of the photoperiod. (Reveg, light leaks, inconsistent on/off, etc).

well, ph? perhaps a slight micro nute deficiency caused the cells to grow slower/faster on the leafs... who knows. just check the pH, and make sure your nutrients are fresh (ive noticed some mold growing inside one of mine before!) and as long as the plant is generally ok, nothing to worry about.

Thanx everyone for the ideas. I'll probably try and flush this baby out and see what happens.

So: I have been using tapwater and letting it sit out to dissipate the chlorine. I have also been using water with a Ph of around 6.2. After watering, the soil Ph sits at 6.5, so I figured I was good on the Ph. As far as PPM or TDS, I dont have the tools to check for those things. Interesting comment about the genetics. I actually thought it might be a genetic thing. You also mentioned photoperiod. As I have been growing these girls I have also been tweaking with their room. So I may have had some light leaks, etc. Is this something that can really cause issues like this? Anyway, Thanx all for your help. Here's a few better pics of what I'm dealing with.IMAG0162.jpgIMAG0163.jpgFirst two pics are of older leaves from back when I had heat issues and the Ph wasn't right yet.IMAG0164.jpgHere's a new leaf demonstrating the same issue.IMAG0165.jpgHere's a full body shot of my girl. Overall she looks pretty healthy. She's in week 1 of flower.