yellow leaves

Space Angel said:

I recently noticed my leaves where dying and turning yellow in week 3 of flowering. I just changed water and new nutes last wed. Ph was a little high so adjusted with no problem, but today when lid was up, I noticed no air bubbles and scum on top of the water, in short my air pump was burnt up and I really have no idea how long they went without solid oxygen. my question is do I flush with clean ph adjusted water, and if so, how long ? they were doing great until now. any help is greatly appreciated!

Click to expand...

HomeGrownHairy said:

You said "LAST WED." This is Saturday. Do you mean 3 days ago or the prior week? If it's 3 days ago, you should be okay, but I'd syphon off the scum.
Scum is not a good thing as you prolly know. The nute soup should smell sweet/fresh. If it has a bad odor, I'd flush it. I'd drain it and then flush using 1 oz CLEAREX/ gal. Keep checking the ppm meter until the ppm's levels off (approx. 15 min - 30 min) and then flush out the Clearex water and replinish with a fresh batch of soup dejour.

Click to expand...