Wrinkled leaves, what shall we do?!

Hello guys!
I'm here again!
My leaves appear to be wrinkled. Can it be pH variation? or not?!

In flower i used clay balls, 1600w LED (distance ok!), drip irrigation (4/5 times per day), GH with Micro, , grow, bloom and liquid koolbloom. Mix nutri with osmose water.


Details:
Flower room (sativa plants)
pH: 5.80
Temperature solution: 17.2C
ambient temperature: 20C

Veg room (indica plants)
Rockwool cubes: 5.8pH
Ambient temperature: 22C

In veg room, It seems that plants are stressing because of the temperature.

Hide on Bush said:

In veg room, It seems that plants are stressing because of the temperature.

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Unlikely. Your temperatures are in the 60's (F) which is fine. It takes into the low 50's to really start messing with them in any way, and that has to be for prolonged periods.

It's more likely the medium is lousy and you're getting nutrient lock out and you're overwatering at the same time.

The way the tips are curled up and burnt looking makes it appear that you (like 99% of all people) overdid it on nutrients in your water and began burning the plants up, but the lockout occurred before the burning really took off.

They look half starved and burnt at the same time as well as overwatered.

TacoMac said:

Unlikely. Your temperatures are in the 60's (F) which is fine. It takes into the low 50's to really start messing with them in any way, and that has to be for prolonged periods.

It's more likely the medium is lousy and you're getting nutrient lock out and you're overwatering at the same time.

The way the tips are curled up and burnt looking makes it appear that you (like 99% of all people) overdid it on nutrients in your water and began burning the plants up, but the lockout occurred before the burning really took off.

They look half starved and burnt at the same time as well as overwatered.

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What should I do?

Hide on Bush said:

What should I do?

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I have no experience with your exact growing medium, since I grow with coco.

But, either way, I think flushing the roots is a start. Use properly Ph water.

Which brings up another point, pH. How are you testing pH? Because you say you are properly phing the water, but the plants tell a different story.

If you can correct the pH, when you go back to feeding, keep it low. Don't use the recommended amount of nutes on the back of the bottle, use a lot less and see how your plants react. Also read up on how you are growing and make sure you are watering/feeding at the correct times

Hide on Bush said:

What should I do?

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Rule one: Never, ever grow in a medium you're not familiar with.

Rule two: Don't believe 90% of the bullshit you read on growing sites.

Rule three: Keep it simple. Marijuana is a weed. It will grow when left pretty much to itself in soil. It's easier to grow good weed than it is tomatoes. It really is. Less is more. Keep it simple.

If at all possible, I would transplant those into soil (Soil being 60% potting soil, 40% perlite, 6 to 8 tablespoons of lime all mixed well in a 3 gallon pot), slow down, and let them recover. Lay off the nutrients entirely for a while and water only once every three to four days. (This is provided you get them into soil, of course.)

After they start to recover, there's an easy way to tell when to water: Right after you water the plant, lift it. (Pot and all) Feel the weight of it. The next day, lift the pot. Make note of the weight. The next day lift it again. When the pot feels like it has halved in weight (or thereabouts) it's time to water. In the beginning, that will be every 4 days or so. As they grow larger, that will come down to every 2 days. Eventually, in flower when they get large, it can turn into every single day.

You do that, they should bounce back in about two weeks and you'll be right back on track. You don't, well...good luck.

It sounds like you tried getting into hydro without really having any experience at it at all. That is a very bad move.

If you're going to make the move to hydro, you can't get cheap on medium. You just can't. Hydro, although it can make for richer yields, is very unforgiving. You can't fuck up a hydro grow and get away with it very often.