barney_b (26-07-22), CityDweller (26-07-22), GEORGE (26-07-22), r33ee (29-07-22), V8 (26-07-22)
Ahhhh that’s not good dear.
So are you saying you had to go away for 3 days and as you didn’t want the plants to dry out you filled the trays with solution ? And said solution was still there on return ?
You have starved the roots of oxygen which may mean they are locked out.
Ph in the rootzone could be off also,I’m not a fan of testing run off but doing that would give some idea.
A flush through with a low nute mix correctly ph,d.Then back to a regular feed with extra cal/mag would be my suggestion.
barney_b (26-07-22), CityDweller (26-07-22), GEORGE (26-07-22), r33ee (29-07-22), V8 (26-07-22)
Quick update flushed them out with a low ec 0.9 ph at 6.0.
Test the first runoff it came out at an ec at 2.9 ph about 6.1 repeated this another 2 time at the last runoff is about the same as going in now ec/ph so hopefully look better in morning thanks
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barney_b (26-07-22), Bethmeg (26-07-22), CityDweller (26-07-22), GEORGE (26-07-22), r33ee (29-07-22)
Looks like you got some sound advice!
Sorry I've not been well so didn't respond sooner. That said you're in Beth's capable hands (who knows more than I probably ever will) so not much I can add.
Unlike Beth I religiously measure my runoff EC. 2.9 is exceptionally high for coco runoff in my experience. Even when mine's gone to 2.1 I start to see plant impact.
The flush you did and then following Bethmeg's advice is good. As I use RO water I Calmag to 0.4 every feed regardless in coco under LED. I've read too many horror stories in coco not to do it and I've had absolutely zero issues since I started doing it. Just note I'm a complete novice at this but almost all the grow diaries and advice I've seen says to add clamag.
My tap water Ca is over 350 and my Mg is under 1.5. I couldn't find any definitive rules or recommendations on what a "good" amount of Mg is in tap water but as I said I RO all my water now so it's somewhat irrelevant to me.
Good luck
MJ
Previous Diaries - Auto Blue Dream DankberryGrow Kit List
Lights - 2*MarsHydro TS1000, 1 MarsHydro FC3000 and 1*Migro Array 2 Pro
Tent - ACInfinity Cloudlab 642, HomeBox 80*80*160
Extraction - ACInfinity Cloudline S6 plus - Mountain Air Carbon Filter
Neuts - Emerald Harvest
Grow Medium - Coco (Canna Coco Pro+) - Plant!t DWC/Wilma
CityDweller (29-07-22), GEORGE (29-07-22), r33ee (29-07-22)
CityDweller (08-09-22), GEORGE (29-07-22), pl0xcilies (10-09-22), r33ee (29-07-22)
Just a quick update 6 weeks later
Looking beautiful
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Bethmeg (08-09-22), BR3WDAWG (14-09-22), CityDweller (08-09-22), GEORGE (08-09-22), mpsj (08-09-22)
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