u/Puzzleheaded_Fold665

What's growing on guys..I've tried switching to led lights and running 83/84f ambient temps and still looks like my plants are too cold and not transpiring, I've got the purple stems and dry leaves with what I'm guessing closed stomata causing lockout etc.

My only heat source is a dehumidifier and my leaf surface temps were reading 76/77f.

Do you think I should be running my 2x135w tube heaters both sides of the 1.5m x 1.5m x 2m height grow tent to get heat to the whole plants, stems, leaves, roots etc?

The only thing that works for me right now is adding the hps light.

I've been in the game long enough to have everything else dialed in with my feeding schedule and vpd levels throughout.

Anyone else been through anything similar or found what works for them?

I've probably missed some bits and apologies but would like to hear some stories and feedback ect.

Thanks.

Hi growers especially hydroponics non soil/coco.

What do you run your parameters at?

I'm vegging with hps and switching to led for flower I'm getting 84/85f ambient temps and I'm getting purple stems and leaf surface temps of around 77f.

I'm running a water chiller in my res set to 70f.

Question is, do I need to add some more heat to my ambient temps as the plants just stop growing, shriveling up and drooping over.

My VPD is between 1.1 - 1.4.

Because I'm running roots in a constant 77f nutrients do you think if I add a heater to get to 88f-89f I would get better growth?

I've had to put the hps back in so I'm 1 running hps and 1 led combo and they come back to life with vigorous lush growth.

Are there any experts out there who can help a grower out?

Thanks 👍

Led Temperatures

Led grow lights.