Notice how the stems are all turning a greyish purple color? Your coco is too dry. You want to keep it moist all the time. It was one of the first things I learned when I started growing in coco back in 2005. The stem discoloration was the big tell. Treating it like soil and giving it a dry back can mess up your cation exchange capacity (locks out calcium, magnesium, and iron) ph, and EC big time.

stanknkatz said:

Notice how the stems are all turning a greyish purple color? Your coco is too dry. You want to keep it moist all the time. It was one of the first things I learned when I started growing in coco back in 2005. The stem discoloration was the big tell. Treating it like soil and giving it a dry back can mess up your cation exchange capacity (locks out calcium, magnesium, and iron) ph, and EC big time.

Growing Cannabis in Coco Coir with High Frequency Fertigation - Coco For Cannabis

Learn how to unlock the magic of growing cannabis in coco coir with high frequency fertigation! Guide to feed and water cannabis in coco like a pro!

www.cocoforcannabis.com

Click to expand...

Dame really I would of thought the opposite since I didn't put perlite and it's autopots need drainage lots of it since it is bottom feed and people that do autopots just coco have airdome at the base giving co2 so the roots don't struggle that's what's going on I did dry back KS cause they were suffocating I know you can get yellow leaves frome underwater ingredients but this want the case my plants were always drenched but too drenched it seems very hard to overwater with coco but with thos system it seems to be possible

ted55554 said:

Dame really I would of thought the opposite since I didn't put perlite and it's autopots need drainage lots of it since it is bottom feed and people that do autopots just coco have airdome at the base giving co2 so the roots don't struggle that's what's going on I did dry back KS cause they were suffocating I know you can get yellow leaves frome underwater ingredients but this want the case my plants were always drenched but too drenched it seems very hard to overwater with coco but with thos system it seems to be possible

Click to expand...

I'd advise not bottom feeding and hand water to waste runoff, discarding the waste, or set up a drip. When you bottom feed, yes, it sucks up the nutrient solution, but then when it dries out, all the salts accumulate, and that's no bueno. I'd flush them good, and then for plants your size, I'd be doing at minimum 3x daily fertigations. Drip systems and ebb and flo have an advantage there, you can set up a timer and have it do the feedings for you instead of having to manually be present to feed them. Keep the nutrients on the weak side because you're giving them multiple daily feeds. You can always add more if you think the plants need it/can stand it.

Just my 2 cents, minus taxes.