Multiple issues

[Micky&MalloryKnox]

Problem: 1 dry Crispy brown/yellow leafs, slow drinking.
2. Some type of light coloured dusty/salty deposits on top of coir and what's looks like algae however medium has never been wet for longer than 36hrs give or take.


Medium/grow method: coir 60/40

Feed: and supplements used: Dutch pro a+b autoflower SW grow/bloom. Dutch pro explode. Plantmagic calmag

water source: tap

Strain/age: autoblackberrykush 46days

light used: ish265 type r X2 in a 2by8 space

Climate:19°c - 28°c 38% - 62%RH

Additional info: Ongoing for around 2 weeks now originally thought calmag would help but no change.

 

[namvet25]

Are you ph'ng your water?

 

[Micky&MalloryKnox]

Are you ph'ng your water?

Sure have between 5.8 and 6.3.

 

[Arthur]

Medium 60/40 with what? What kind of coco, was it flushed and precharged? Do you water to runoff? Do the bags sit in runoff?

 

[namvet25]

Google Search

www.google.com

 

[Micky&MalloryKnox]

Medium 60/40 with what? What kind of coco, was it flushed and precharged? Do you water to runoff? Do the bags sit in runoff?

Pebble thingies rinsed with tap water, canna plus+ and no precharge. Water with min 20% and not sitting in runoff.
I have flushed with ph water and then fed full strength with added cal.
More than likely packed the medium to hard.
This particular strain entered flower on week 3 at least 2 weeks ahead of the other strains.
Can't seem to figure it out. Apart from the obvious colour and vigour has always seemed good.

 

[Arthur]

Check medium pH and EC/PPM. Am leaning towards a pH drift, or nute buildup.

 

[Waira]

-- looks like heavy P defc. to me,... two thimngs need to be figured: in-pot pH, or a solid read of run-off, and ditto for ppm's.... Also your feed/input pH and ppm's... Oh, and for your water! Deposits like that smack of hard water mineral build-up, drives pH up, add's unusable ppm load that can screw with uptake of other nutes.... We need to figure if this is a pH related defc., lack of defc., and/or problem related to the water....

 

[Micky&MalloryKnox]

-- looks like heavy P defc. to me,... two thimngs need to be figured: in-pot pH, or a solid read of run-off, and ditto for ppm's.... Also your feed/input pH and ppm's... Oh, and for your water! Deposits like that smack of hard water mineral build-up, drives pH up, add's unusable ppm load that can screw with uptake of other nutes.... We need to figure if this is a pH related defc., lack of defc., and/or problem related to the water....

I believe it was a pH related issue my ph pen. Never assume plants came round and one pheno is particularly caked with frost.

Many thx