2x2x5 grow

[Akabudz]

Hi all.
OK I am thinking this is a potassium def?
Coco in 2 ltr fabric pot, at moment watering once per day with 15 to 30 % run off,
Tap. Water ppm 270.
Dutch Pro nutes 2ml a and b per 5 ltr giving total ppm 440, water. Ph 5.8, run off ph 6.6
Flushed with ro water and calmag to 100ppm, flushed with 3 ltrs of water 3 days ago, and still showing high ppm in run off.
Temps 28 day, 23 night, rh 45
Any help appreciated.
Thanks

 

[Akabudz]

Any one able to help?
TIA.

 

[Aqua Man]

What brand of coco. Imo that tap water ppm is likely to high and full of carbonate and bicarbonate. That's why the ph of the runoff is so high.

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[Aqua Man]

Also never let coco go dry or light. That will raise ppm. You probably need to fix the source water and feed more often. This is not soil you cannot treat it like soil if you want to see the benefits of coco.

 

[Akabudz]

Canna coco bro, when I say light probably 30% moisture left, 8 know never to let coco go dry,
My tap water is usually 190 to 200 ppm, calibrated 2 x pH pens to. Make sure ppm Was correct.
So looking at those leafs would you say potassium def bro?
Thanks for dropping in

 

[Aqua Man]

Canna coco bro, when I say light probably 30% moisture left, 8 know never to let coco go dry,
My tap water is usually 190 to 200 ppm, calibrated 2 x pH pens to. Make sure ppm Was correct.
So looking at those leafs would you say potassium def bro?
Thanks for dropping in

Coco should stay 90% + saturated soil should go to 20-30% before watering

I would say that is the reason your runoff ppm is getting high

 

[Akabudz]

90%? That's pretty much saturated bro?
I will fit drip system in a few days and feed light and regular and take your advice

 

[Aqua Man]

90%? That's pretty much saturated bro?
I will fit drip system in a few days and feed light and regular and take your advice

About 400ppm I would say at this stage. In one gal pot you should need to water about 250ml if nutrient solution for each fertigation event. And you should get around 25-50ml of run off. If you get less than that you need to increase the number of fertigations.

 

[Akabudz]

Thanks bro
I will update next couple of days.

 

[Akabudz]

OK.. I did another flush yesterday evening before lights out and think i have found my problem, ppm on run off was a massive 1100,
This morning i will flush with 2 gallon of ro water with only calmag added to ppm. Of 100. Will update later.

 

[Akabudz]

Hey all, a quick update, managed to set up auto feed, and in 2 days I have topped, and she is looking well and growing quickly.
Mineral water, ph adhust to 5.75,
Ppm water 160, added 1ml per ltr calmag, 2ml duetch Pro A and B, and 0.2 ml cantanna roots, finished ppm 410 to 420
However as In my last grow I'm getting lower set of leaves with lighter veins,
Still under cfl, going 250 hps in 2 days, .any help on veins in lower leaves appreciated.