Quote Originally Posted by mlwjr69
i am spraying them by hand twice a day for about 20 seconds with a co2 tank.
A 'quick' bump in CO2 might be a bonus...for about 10 seconds. After that, it mixes with ambient air, and the concentrations are watered-down with every cubic foot of fresh air from the intake.
But an over-concentrated dose might also fry the plants ability to 'breethe'. If you have no way to monitor ppm, I'd ditch the CO2 for now. At least till you get 'em healthy.
Read-up on the proper use of CO2 before continuing it's use.

Waiting for the form....
Rusty Trichome Reviewed by Rusty Trichome on . yellowing leaves I got these clones about two weeks ago. I came home this weekend and there was a bunch of dead leaves and dying leaves with brown spots.There is also still yellow leaves that just fall of when i touched them, so i pulled them all off. The remaining healthy leaves a little more light green. Do i pull of all of the leaves that are dying? More importantly, what is causing this? I gave them a bit of plant food 2 days ago but they still look pretty light green and a couple more leaves are still Rating: 5