Yellowish leaves - Thin blades leaves - Coco grow

[chuckpumpkins]

What Strain is it? Blue Dream
Is it Indica, Sativa or Hybrid? What percentages? Hybrid
How Many Plants? 2 plants
Is it in Vegetative or Flowering Stage? Veg
If in Vegetative Stage... How Long? Day 20 from seed
Indoor
Soil or Hydro? Coco
If Soil... What is in your Mix? COCO 80% Perlite 20%
If Soil... What Size Pot? 5Gal
Size (Wattage) of Light? How Many? 2X 1000 watts LED in 5x5 tent
Is it Air Cooled? No, Air at 74F
Temperature of Room/Cabinet? Air at 74F
RH of Room/Cabinet? 50ish
PH of Medium or Reservoir? Feed at 5.8-6.0
Any Pests? Had thrips issue last week. Sprayed the plants with Potasium Soap for plants.
How Often are you Watering? 1 or twice a day
Type and Strength of Fertilizers used? Only use CANNA COCO AandB at 350 ppm. was at 440ppm since a few days.
Size or Square Footage of Room? 5X5

 

[Troy01]

Hi ChunkyPumpkins.

Your PH looks perfect. What strength are your nutes? I usually start at about 1/2 of the recommended label strength and then gradually build up as the plant matures. I don't see any mention of adding Cal/Mag to your water regiment. CoCo causes a deficiency of these elements and need to be added to each watering.

It is also possible the Potassium Soap may have caused some burn to the plant. I had a thripes problem on my last grow and battled it for the entire grow.

 

[chuckpumpkins]

Hi ChunkyPumpkins.

Your PH looks perfect. What strength are your nutes? I usually start at about 1/2 of the recommended label strength and then gradually build up as the plant matures. I don't see any mention of adding Cal/Mag to your water regiment. CoCo causes a deficiency of these elements and need to be added to each watering.

It is also possible the Potassium Soap may have caused some burn to the plant. I had a thripes problem on my last grow and battled it for the entire grow.

thx for the answer. I am not adding cal mag for now. I have a bottle of it but did not use it yet. I was afraid to burn my plant if I add to much things. Also this looks more like at nutrient excess issue. I also was thinking maybe the potasium soap caused the issue...

I give coco A and B at 350-400 ppm right now. Its a bit less than half whats recommended..