It's snowballed!

[Traptito]

Hey friends! I'm about 25 days into my first auto grow (in coco) and a couple of these girls are acting up. I think it might be a Mg deficiency but I'm a bit stumped. Like I said, growing in coco and getting fed the GH Trio along with 5ml Calmag per gallon every watering. They've seemed to take the nutes pretty well. Any input would be greatly appreciated!

 

[Nefarious]

I'm using GH trio in Coco. I'm feeding between 350-400ppm at day 47. Never had to go over 450. I used 5ml calmag per gallon until 2 weeks ago. Now at half that dose. I give plain water with half dose calmag every 3rd feed. What PH are you feeding at? I feed with around 20% run off to avoid build up.

My run off is around ph 6.7 ish prob not too accurate but ballpark. I'm feeding anywhere between 5.6 to 6 had no issues.

Yours does look like mag but you seem to be feeding the right dose so might be PH locked out or build up in Coco. More info needed.

Check run off PH and PPM.

 

[Traptito]

I'm feeding at 6.0-6.2, I was pretty schnockered last time I fed them so I didn't check the runoff.. I was thinking the same that lockout from build up might be the culprit. Been watering to runoff but not too much since my coco takes a good three or four days to dry enough to water again.

I was going to flush with plain ph'd water later since they're due for a watering, measuring the first runoff when it comes out should work yeah? Thanks for your input, I appreciate it!

 

[Nefarious]

I'm feeding at 6.0-6.2, I was pretty schnockered last time I fed them so I didn't check the runoff.. I was thinking the same that lockout from build up might be the culprit. Been watering to runoff but not too much since my coco takes a good three or four days to dry enough to water again.

I was going to flush with plain ph'd water later since they're due for a watering, measuring the first runoff when it comes out should work yeah? Thanks for your input, I appreciate it!

Yeh,for ref my run off ppm is just below what I'm putting in. Around 300-350ppm.

I also don't let the Coco dry , I heard it causes build up if u let it dry, my 10 litre pot gets just over 1l a day. It's hard to overwater in Coco.

 

[Traptito]

Thanks friend, i'll flush with plain ph'd water then give them water with just calmag and report back in

 

[Traptito]

Ok guys, I went ahead and flushed them with ph'd water + Calmag and they seemed to take it well, that was about three days ago, I noticed some gnarly drooping last night. I'm thinking they got overwatered, as of now the coco is slightly moist as if almost ready for another watering. I'm pretty sure I flushed out all the salt buildup and there's just calmag in there now. I'm thinking I should let the coco dry out more but if anyone more experienced has any ideas, I would greatly appreciate it!

Temps have averaged 25C/77F and Humidity at 64, ph runoff when I flushed was a little high at 6.7, when feeding them before I'd always ph from 6.0 to 6.3