Newest Leaves Twisting (Not Curling)

First off please forgive me if this has been covered somewhere and I just haven't found it. All of the results that I've seen are much younger plants and the leaves aren't curling like mine are.

The highest leaves on both plants seem to be twisting (like if you held the tip of the leaf and turned it clockwise) and exposing the underside of the leaves to the light. They are just under 40 days old and they are both Dinafem autoflowering plants. I gave them nutrients for the first time about a week ago, although I'm fairly certain this problem precedes the nutrients (although they have been in FFOF for weeks now). I also just switched over from a 250w mh bulb to a 250w hps bulb 3 days ago, which I notice right off the bat is much hotter. It also seems to make the tent more humid if that makes any sense. I feel like since the light was changed the twisting is much more prevalent.

Since I'm pretty new to this still I have no idea what it could be. I've been thinking anywhere from the light is too close to nute burn to they are twisting because the plant is kicking itself into flowering mode. If anyone can take a look at these pictures and give me an idea of where I'm screwing up I would be very grateful.

Looks like SEVERE overwatering to me.

Looks like overwatering to me. I'd hold off on the nutrients for now too.
Maybe Make sure you light isn't too close to them also as an hps gives off some heat lol.

I've had the same problem with my girls and found its because it's poor ventilation since they hav gone Into a bigger room with better vent the leaves that come through now are back to normal I think heat played apart in it too, tho it mite not be the case for u

that is called "clawing" and is. traditional sign of over feeding. over watering causes them to droop not claw.

Ah the good old claw, I agree with Superstoner they look overfeed.

Alright so if I just let them dry out and stop feeding them they will be okay? I only gave them half strength nutes and I waited a month after putting them in ffof to start feeding them. Overall I'd say each plant gets 1/3 a gallon of water a week and that is in 3 gallon smart pots with about 30% perlite.

it would be best to flush them good.

Overwatering and ph too high

Flush and do lighter feed, if you went half strength then go 1/4 and work way up slowly.

HotShot7414 said:

Overwatering and ph too high

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its not a guessing game, its based on facts.

Over feeding? They look heat stressed to me..

heat stress causes upward bending of leaf edges, or taco-ing. over watering causes drooping. over feeding causes burnt tips and downward CLAWING of leaves which will get worse.

AJgoldy08 said:

Over feeding? They look heat stressed to me..

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Ohhhh crap Mon read his post again and he changed bulbs, yeah you could be right, go head and make sure light is not too hot?

hehehe mon stoned but read it again, lol he also feed for first time a week ago? fuk it when in doubt flush and lightly feed, and check da light jus in case.

Thanks for the replies. The temps in the tent range from about 72° with the light off and about 79°-81° with it on. Humidity rises at night but I have a dehumidifier on the way. I would say the light is about 18 inches from the tops of the plants.

So I should definitely flush them? How much water would you say is good for flushing out a 3 gallon pot?

Yes flush and how much water could depend if its coco or soil etc.....don't drown them with 50 gallons of water or anything, mon would just flush them so there is run off a few times mon would think 9-12 gallons would be more than enough

I must again agree with Superstoner's diagnosis's your plants are over feed. Were you only feeding straight water to the FFOF prior to the fertilizer application. Did you feed them fertilizer because they were showing deficiencies. What type of fertilizer did you feed them. And just to be clear the soil they are currently in is FFOF with additional perlite in 3 gallon smart pots.

cleverpiggy said:

I must again agree with Superstoner's diagnosis's your plants are over feed. Were you only feeding straight water to the FFOF prior to the fertilizer application. Did you feed them fertilizer because they were showing deficiencies. What type of fertilizer did you feed them. And just to be clear the soil they are currently in is FFOF with additional perlite in 3 gallon smart pots.

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Yeah it's been only water until the first feeding the other day. And you are also correct about the pots and the extra perlite. I didn't add the fertilizers because of a deficiency though. I added them because I read that you need to wait a while with ocean forest before you start feeding. Being as the plants are a little more than halfway through the seed company's seed-to-harvest time frame (it said from seed to harvest in about 65 days for these autoflowering strains), I figured it was about time to feed them. I've heard that you are supposed to go easy on the nutrients for autos so I cut the suggestions in half.

Do you think I should just use water from now until harvest?

I think you need to stop adding any nutrients first off. You kind of had a living soil going with the FFOF and plain water, you may have upset the balance you had by adding the chemical fertilizer. I asked what kind of nutrients you added on the first feed because I wanted to see what type of damage you did to your existing microbes that were already in the soil. I have seen microbe teas fix hot or rich soil very rapidly. I think i would try a tea first if it were me. Do you have the ability to make a compost tea it is easy to make but difficult to find high quality ingredients. Try 1tbs. good vermicompost (not wiggle worm good fresh stuff) 1 tbs good compost 1 tsp molasses and 1 tsp. rock dust. Brew this with a small aquarium pump in a gallon milk jug for 24 hours and apply to the soil. If this is too much work get some great quality earth worm castings and make a mud slurry and add as a top dress to your pots and water. The Microbes in the tea or the earth worm castings will aid in the balancing of the soil. Just my $.02.