Deformed leaves on clones, single leaves and cupping down

Running some clones from mothers I currently have 8 weeks into flowing. They are about 10 days into 12-12.

They a flood and drain table filled with hydroton. I am seeing stunted growth and a large number of deformed or single leaf fan leaves on 2 of the 6 clones I have running. They other 4 are strong and growing normally. All of these clones came from the same mothers and are getting the same feeding schedule of 5.8-6.1PH water 700PPM with GH 3part.





The plant on the left rear and far right rear are the ones showing the problems.



They are flooded every 3 hours for 3 mins during lights on, and 2x during lights out

nitrogen tox

If you're getting single leaves that are broad and don't look like typical pot leaves, your plant is re-vegging caused by interrupting the night (lights-off) cycle.

If this is the case for you, you're in for a month of your plant straightening itself out, and even then your yield is going to suffer.

Flooding at night is doing nothing for feeding the plant and really isn't a good idea.
The plant does the "work" of "eating" ONLY during lights ON times.

You might do better by running 4-5 floods spaced out as exactly as you can with the first at lights on and the last right BEFORE lights off. 15 minute floods!

I'll say the 2 not throwing multiple (normal leaf structure) leaves are not stable yet (stress).
Do not "flip" plants till they throw "normal" leaf structure.

The single leaves and the "spinning" leaf together do suggest an attempt to re-veg.

BTW, you are nowhere near 8 weeks into flower if your at 10 days of 12/12.......That would be 10 DAYS into flower...

The plants I took these clones from are 8 weeks in, the plants with the problems are about 11 days in to 12-12. Being that both of the plants are in the back corners (both sides) the most likely problem seems to be a light leak which would explain why the front and middle plants do not have any of these problems and why the leaves before the flip did not show any of these problems.

Adjusted the intakes on the sides in hopes that this is where the light leak is coming from.

Thanks all.

If they are indeed revegging, I will keep an eye on them and either cull them or just harvest them a couple weeks later than the rest.