small leaves curling in

Been flowering almost a month. I dimmed the ballast to 75%about a week ago for a couple days.it started to stretch so I switched it back to 100%. now I've noticed some of the smaller leaves are curling in.the last few feedings have been light fed and only water. Rh is about 20%.

What are you feeding them? How much nitrogen is in it?

Also along with the n I think I can see some overwatering, in the 1st picture there's some wrinkled leaves bottom left plus others,

I would feed half-strength nutes with 100% runoff to flush. You posted another thread describing your leaves as waxy. Shiney/brittle can result from overfeeding and salt buildup. You're at the right stage of growth for when that presents itself. Overfeeding can give N tox symptoms like the claw even though you plants don't look dark enough to be N tox.

But, you want to be careful of overwatering, not letting the soil dry sufficiently between feedings. The soil's ph rises as it dries. If you're working too much on trying to fix something you run the risk of holding the ph low by not letting it go through complete wet dry cycles.

IVe been using half tbs ff tiger blood, botanicare calmag plus, and 1 tbs ff big bloom per gallon. 2 gallons every 2-3 days.

I gave it no nutes for about two weeks before moving into the flower room, but never flushed.

I wonder if its ok to use flushing solution between feedings and if that would help?

Will Ferrell said:

I wonder if its ok to use flushing solution between feedings and if that would help?

Click to expand...

I don't believe it's necessary. There's a lot of cannabis-specific stuff sold that aren't necessary. Keep it simple.