Clawing tops: please help

[Aqua Man]

Update: I’ve stated course of watering Every other day (2-3x per day) and here’s the result:

View attachment 923992View attachment 923993View attachment 923994

Nearly everyone has darkened up and normalized to a great color of green and is flourishing. A few plants are still a bit off but they’re on their way out of the woods. I’ve changed my ppm input to 800-900ppm as well (150-160ppm is tap water).

Now just do that every day. They will appreciate it

 

[HFJud]

Update:

— no more clawing
—— I have been watering 3x a day on an Every-Other-day schedule and 1 watering in-between those days
——— so my watering schedule looks like (3x-1x-3x-1x watering)

Plants have been responsive and having insane growth spurts. Now, I am still seeing some issues crop up which I believe are pH fluctuations and now believing @Aqua Man to be correct - if, in fact, the pH swings are what is causing this:

— I’m seeing the same reddish/brown striations on the leaves (not all plants) and I believe to be pH fluctuations. If that’s the case I need to be watering every day.

Other issue is some taco/canoe leaves

— this looks like heat stress but they’re on the lower leaves. Temp: 83-84f, 50% humidity and CO2 at 1500ppm.

This looks like some nutrient burn but the color is yellowish, not your typical burn look and the growth is thick. Thoughts?

 

[Aqua Man]

Update:
View attachment 926374
— no more clawing
—— I have been watering 3x a day on an Every-Other-day schedule and 1 watering in-between those days
——— so my watering schedule looks like (3x-1x-3x-1x watering)

Plants have been responsive and having insane growth spurts. Now, I am still seeing some issues crop up which I believe are pH fluctuations and now believing @Aqua Man to be correct - if, in fact, the pH swings are what is causing this:
View attachment 926375
— I’m seeing the same reddish/brown striations on the leaves (not all plants) and I believe to be pH fluctuations. If that’s the case I need to be watering every day.

Other issue is some taco/canoe leaves View attachment 926373
— this looks like heat stress but they’re on the lower leaves. Temp: 83-84f, 50% humidity and CO2 at 1500ppm.

This looks like some nutrient burn but the color is yellowish, not your typical burn look and the growth is thick. Thoughts?
View attachment 926376

Possibly wind burn? Low humidity? Looks like possibly early K deficiency in the last pic?

I'm betting more watering will help the ph swings stability and sort out any deficiencies.

How much wind are those leaves getting?

 

[HFJud]

Possibly wind burn? Low humidity? Looks like possibly early K deficiency in the last pic?

I'm betting more watering will help the ph swings stability and sort out any deficiencies.

How much wind are those leaves getting?

Not wind burn as I don’t have anything in direct wind. Lots of air movement but I was leaning towards low humidity or heat.... but both are in control so I’m thinking it’s ok - not experiencing any aggression of tacoing.

Now, the red-brown striations definitely point me towards pH fluctuations. So I’m going to increase the frequency of watering to 3x-2x-3x for a week and then try out 3x every day.

 

[Beachwalker]

Looks like possibly early K deficiency in the last pic?

I'm betting more watering will help the ph swings stability and sort out any deficiencies.

 

[HFJud]

Hey guys, I’ve got an update for you -

I am now watering 3x/day every day started on Monday (01/06/2020). I’ve been monitoring growth and watching for deficiencies...... My ladies are 100% healthy and handling the waterings perfect. Growth rate is incredible. Thank you for the help everyone - especially @Aqua Man .

Not pictured: 2nd layer of trellis.
—- will be defoliating this week.

 

[Aqua Man]

Hey guys, I’ve got an update for you -

I am now watering 3x/day every day started on Monday (01/06/2020). I’ve been monitoring growth and watching for deficiencies...... My ladies are 100% healthy and handling the waterings perfect. Growth rate is incredible. Thank you for the help everyone - especially @Aqua Man .

View attachment 928304

Not pictured: 2nd layer of trellis.
—- will be defoliating this week.

Awesome news

 

[hawkman]

Update:
View attachment 926374
— no more clawing
—— I have been watering 3x a day on an Every-Other-day schedule and 1 watering in-between those days
——— so my watering schedule looks like (3x-1x-3x-1x watering)

Plants have been responsive and having insane growth spurts. Now, I am still seeing some issues crop up which I believe are pH fluctuations and now believing @Aqua Man to be correct - if, in fact, the pH swings are what is causing this:
View attachment 926375
— I’m seeing the same reddish/brown striations on the leaves (not all plants) and I believe to be pH fluctuations. If that’s the case I need to be watering every day.

Other issue is some taco/canoe leaves View attachment 926373
— this looks like heat stress but they’re on the lower leaves. Temp: 83-84f, 50% humidity and CO2 at 1500ppm.

This looks like some nutrient burn but the color is yellowish, not your typical burn look and the growth is thick. Thoughts?
View attachment 926376

If caused by heat - heat intensity not so much the distance but the pentration of light