HELP PLEASE...

Hello,

I am posting for the 2nd time now because I see the posts above mine and below mine both have replies but mine has none, maybe I have not gone about this the right way... any help is much appreciated. Thanks.

My plants are young ranging from first rooting to 3 weeks old. They all have these brown spots on older leaves. I'll post pic. I ph correctly, I am thinking heat stress maybe.

Please help , all my plants have this issue otherwise they are looking really good.

Therealogkush said:

Hello,

I am posting for the 2nd time now because I see the posts above mine and below mine both have replies but mine has none, maybe I have not gone about this the right way... any help is much appreciated. Thanks.

My plants are young ranging from first rooting to 3 weeks old. They all have these brown spots on older leaves. I'll post pic. I ph correctly, I am thinking heat stress maybe.

Please help , all my plants have this issue otherwise they are looking really good. View attachment 3988178

Click to expand...

I can't tell what it is. Looks like handling damage of some sort. Pictures of the whole plant might help and can be useful in the future for reference.

Buba Blend said:

I can't tell what it is. Looks like handling damage of some sort. Pictures of the whole plant might help and can be useful in the future for reference.

Click to expand...

Those pictures will generate interest. So will describing the soil you are using. It looks like some pots have no perlite ( the white little rocks) and other pots look like they do have some perlite.
If you have different soils or combinations it would help to describe them and the brands used.

All plants are grown in coco. The perlite looking rocks are the gnat prevention rocks, I forget the name. They were left in some of the coco fro. A spill during transplant. All plants are in coco, I'm using ro water, my temps may be getting into the 90's when lights are off during the day, my a.c. is freezing up lately so it stops working throughout the day.
My ph is a consistent 6.0. And I have yet to exceed 840ppm nutrie t solution. I am guessing maybe lights too intense or too much heat? When lights are on the temps are never higher than 80f

I can't help in a coco grow, but even the damage on the big leaf in the upper left side of the last picture looks like damage from rough handling.

Rough handling?

Therealogkush said:

Rough handling?

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That means you likely damaged the leaf with your hand or a # of different ways without knowing you did it and the damage did not show up until many days later.

You don't mention what your RH is.. http://www.growweedeasy.com/humidity

Therealogkush said:

All plants are grown in coco. The perlite looking rocks are the gnat prevention rocks, I forget the name. They were left in some of the coco fro. A spill during transplant. All plants are in coco, I'm using ro water, my temps may be getting into the 90's when lights are off during the day, my a.c. is freezing up lately so it stops working throughout the day.
My ph is a consistent 6.0. And I have yet to exceed 840ppm nutrie t solution. I am guessing maybe lights too intense or too much heat? When lights are on the temps are never higher than 80f

Click to expand...

a/c can freeze up because filter is dirty or it needs refrigerant.