tried everything please help

hey everyone,
not sure wat im doing wrong here. leaves still yellowing and turning crispy. i've tried flushing the soil and still happening anyone help point me in the right direction? i grow in coco and my nutes are hydro coco A n-4.2 p-0.0 k0.0 andhydro coco B n-0.01 p-2.75 k-3.5. i mix up 20mls of each per 7 litres of water. i then adjust the ph at abou6.5 and my ppm is about 980





What is your experience level? first timer

Your Equipment:
.1) Type and wattage of lights. 600 hps
.2) Distance from tops? 50 cm
.3) Reflector type? bat wing
.4) Is there a consistent fresh air supply? yes
.5) Do you have an exhaust fan and a circulation fan? yes
.6) What are the bulb wattages, kelvin ratings, and schedule? 18/6

Your medium:
.7) Specific brand and type of soil, coco
.8) Size of container.10 litre pots
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings?yes

Your nutrients and water:
10) Source of water? tap What's it's ph before adjusting? 8.0
11) Method of checking water ph. test kit
12) Method of adjusting water ph. (phosphoric acid
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.
14) How often are you watering between feedings, and how much per watering?2 times per day and about 1.5 litres each water
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
16) Are your ph levels stable, or do they fluctuate?
17) What is your ingoing water's ph? ...your runoff ph? 6-5 and 60
18) Do you foliar feed? If so, with what, how often, and at what time do you spray?

Your growroom:
19) Indoors
20) 1200x1200x2m tent
21) What are the temps and humidity levels while lights are on? ...With lights off?
22) Have you seen signs of insects in the growroom? no

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?)
24) From seeds or clones? clones
25) Is this an autoflower strain?

Hey,
I just posted on another persons thread.
Similar problems to you. Maybe this might help you too.

I will admit that I am fairly new to this game and learning as I go along but I think I found an article that might help you figure out what wrong.
Have a look here and see what it most closely resembles. Plant Abuse Chart and Photos by Nietzsche

I hope you find what you are looking for in there. I think he/she did a good job in pointing out the main problems.

This deals with deficiencies and overdoses and not parasites.

I also have a grow going on and your feedback would be much appreciated.

Its here : LED LOGGER

I hope I may have helped in some way.

Take care

thanks for the leprechaun.
yea it looks to be Potassium deficiency any ideas how to correct this to get my babies looking healthy again?

Hey,

Glad to help.

I found something which may help.

Try this link. Potassium Deficiency

I hope this helps and gets you back on track asap !

Take Care.

Hey Tentman, I must admit, I am very impressed. You found the canna.com troubleshooters guide and posted right off the bat. Nice work. I have a bit of trouble finding it at times!

Nice link SL, will be looking in on your grow, as well. If you could kindly start a thread, I am sure Tentman and some of the very expert growers and us, not so expert, will follow you along and the confident great growers will give advice as needed or cudos for nice grow! pr

Quote:

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Originally Posted by tentman

hey everyone,
not sure wat im doing wrong here. leaves still yellowing and turning crispy. i've tried flushing the soil and still happening anyone help point me in the right direction? i grow in coco and my nutes are hydro coco A n-4.2 p-0.0 k0.0 andhydro coco B n-0.01 p-2.75 k-3.5. i mix up 20mls of each per 7 litres of water. i then adjust the ph at abou6.5 and my ppm is about 980

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I may be way off-base here, I grow in soil. :)
But, aren't you supposed to adjust pH to hydro levels, when growing in Coco? pHing your nutes/water to 6.5 is perfect for soil, I'm thinking it should be lower for coco.
IMO it also looks a little bit like over watering, is the Coco drying out enough between waterings?

i think i may have overwated with too much nutes early but have flushed them since.they seem too be getting better. just not sure when i should try feed them nutes again. worried about the same thing happening when they just getting better.