What's happening?

175 PPM runoff, when I mix it it brings it up to 235 PPM
PH of the runoff is 7.2, although this isn't calibrated so not sure how accurate. Was only used once and calibrated once about 2 months ago.

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175 PPM runoff, when I mix it it brings it up to 235 PPM
PH of the runoff is 7.2, although this isn't calibrated so not sure how accurate. Was only used once and calibrated once about 2 months ago.

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Your PPM's seems quite low IMO

Your PPM of your runoff should be about what it was going into the plant.

My PPM taper water alone is 400 and something.

If you are growing in organic soil your ph should be around 6.5-6.7

6903a270ffb8b5026a10772c002511ce.jpg


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Your PPM's seems quite low IMO

Your PPM of your runoff should be about what it was going into the plant.

My PPM taper water alone is 400 and something.

If you are growing in organic soil your ph should be around 6.5-6.7

6903a270ffb8b5026a10772c002511ce.jpg


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I'm growing in coco coir

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I'm growing in coco coir

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Whoa! Full Stop. Your in coco. That changes a lot of things. That pH is WAY too high for coco. I see whats up here now.

You have two issues, first thing is that the coco dried out. That stuff is really hard to rewet correctly, it's no wonder it took 7 liters per pot. But that was the CORRECT thing to do. That also explains why the PPM is lower now but she looks so well fed. You probly had salts buildup in the soil from the upward movement of water. You are adding a LOT of calmax, but in coco that's less of a problem, coco sucks the stuff up.

Here's what I would do:

Calibrate that pH pen, and retest with a proper pour through test. The directions are in the stickies of the infirmary main page.

If your pH is still higher than 6 you have to fix that first.

Once your pH is settled, than you need to re-mineralize the coco with nutes, feed from the top, and then continue as you were with bottom wicking.


p.s. this omission that you are in coco could have saved us a day on helping. I should ave asked, but there is a reason for the infirmary form to fill out.
 
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Whoa! Full Stop. Your in coco. That changes a lot of things. That pH is WAY too high for coco. I see whats up here now.

You have two issues, first thing is that the coco dried out. That stuff is really hard to rewet correctly, it's no wonder it took 7 liters per pot. But that was the CORRECT thing to do. That also explains why the PPM is lower now but she looks so well fed. You probly had salts buildup in the soil from the upward movement of water. You are adding a LOT of calmax, but in coco that's less of a problem, coco sucks the stuff up.

Here's what I would do:

Calibrate that pH pen, and retest with a proper pour through test. The directions are in the stickies of the infirmary main page.

If your pH is still higher than 6 you have to fix that first.

Once your pH is settled, than you need to re-mineralize the coco with nutes, feed from the top, and then continue as you were with bottom wicking.


p.s. this omission that you are in coco could have saved us a day on helping. I should ave asked, but there is a reason for the infirmary form to fill out.
Agree to the fullest

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Whoa! Full Stop. Your in coco. That changes a lot of things. That pH is WAY too high for coco. I see whats up here now.

You have two issues, first thing is that the coco dried out. That stuff is really hard to rewet correctly, it's no wonder it took 7 liters per pot. But that was the CORRECT thing to do. That also explains why the PPM is lower now but she looks so well fed. You probly had salts buildup in the soil from the upward movement of water. You are adding a LOT of calmax, but in coco that's less of a problem, coco sucks the stuff up.

Here's what I would do:

Calibrate that pH pen, and retest with a proper pour through test. The directions are in the stickies of the infirmary main page.

If your pH is still higher than 6 you have to fix that first.

Once your pH is settled, than you need to re-mineralize the coco with nutes, feed from the top, and then continue as you were with bottom wicking.


p.s. this omission that you are in coco could have saved us a day on helping. I should ave asked, but there is a reason for the infirmary form to fill out.
Thanks so much for the support guys I actually do appreciate it. But I don't think anyone really actually reading anything I've been posting properly.

In the OP it says H&G A&B Coco nutes.
Also on a side note I never let the coco dry out, on the Saturday when I top fed it I don't know what overcame me, but I just decided to feed it until it ran out of the drip tray and keep the drip tray full, I thought in doing this it was going to help the plant, I never thought it would lead to nutrient burn. I always feed it from the drip tray and I let it wick up in the soil; is that fine to do or should I stop doing this?

For the next grow, to prevent salt build up should I try using H&G Drip Clean?

I genuinely appreciate the help. For the future, I'll try keep an eye on PH and PPM. Just so I have this for reference, what should the PH of my water and PPM be? The water I feed it, that is. And what should the run off ideally be? Cheers.

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I think if you were able to get 7 liters in a pot before you got runnoff, it was dried up. If your plant date was Jan 1 than your feed PPM could be as high as 750-1000 depending on the strain. pH for feed should be close to 5.5 to 6.5 for coco, the in pot pH is what really matters though, thats where the soil chemistry happens. You will change the pH of feed to regulate the in-pot pH. In-pot pH should be 5.8 to 6.2
 
coco flush with plain water for 10 days, allowing the plants to dry out between waterings. Your flush really depends on how much you feed though. In my opinion the best flush is a balanced feed- if your fertigation was on point there's never any excess buildup hence no real reason to flush.

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