Any advices on this?

Glenkush

Member
So this is my second grow, but it's my first grow from seeds and they doesnt look pretty healty so im asking for your advices. I'll try to put as much information as i can think off.

Strain : Purple Kush from Crop King Seeds
Medium : 75% Coco, 25% Perlite. (Coco block from amazon that has been rehydrated rinced multiple time to get a PPM Lower than 200ppm (0.5 Factor))
Environnement : 4x4x5.5' Home made tent, 4 inch extrator turned off at the moment
Circulation fan : ON Stepped on a milk crate and pointing at the wall
Pot Size : 500ml Solo cup
How old? : From the time i've put the germinated seed in coco, 20 Days
Lights : 4xCOB Vero 29 @ 1.4A = 200W (24in from tops)
Nutrients : GH Flora trio, Base water is tap at 88ppm (f0.5)
Additives : Canna rhizotonic at 1:250 and i've added about 2 TSP of Mykes mycorhizes 2 inch below surface of coco before topping up with coco
PPM : Right now im feeding 250ppm, 1st i bring tap water to 150ppm with calmag then i add 100ppm of nutes
Watering : Right now i give them 100ml and wait until they feel light to lift (More details bellow)
Room : 21-25°C (70-77F) @~50% RH
PH feed : 5.8-6.2 (it slowly goes up along the week, when it hits 6.2, i ph down to 5.8 again)
Runout measured today at day 20 :
PK2 196ppm (f0.5) @ 5.90
PK3 390ppm @ 5.91
PK4 236ppm @ 6.09
PK5 310pm @ 6.36
Not quite sure how to interpret theses values...

Problems : I have 4 seedlings right now let call them by they pot number PK5 and PK3 are doing pretty fine to me but PK4 is curling a lot and PK2 Look like he's having Calcium and Magnesium def

At Day 9 i had realised that my ph pen was off 0.5PH, i was suffering from slow growth it now have been recalibrated and they started growing (I Was feeding 6.3-6.7 Because of that) I Figured out the PH Was off because PK2 Was starting to show Calcium Def

From the begining i was feeding everyday small quantity : Started at 10ml to 45ml everyday but i've realised that the top of coco was becoming dry but the bottom of the cup was always dripping wet since there's not a lot of roots down there right now so i've changed strategy since about 3 days. Now i feed 100ml and i wait until cup is light to lift.

At the beggining i was feeding 210ppm total and at week 2 i started feeding 500ppm but i've started to see curling on PK4 about 5 day later so at this point i've lowered ppm to 250, put the light a little bit higher (18"=>24") and i put the osc. fan higher and pointing at the wall instead of directly at them

PK4 is still curling at this day on new growth and PK2 is showing cal def on newer growth and he's now started showing mag def.


Should i feed heavyier and wait until they dries a bit, or i have done good to backoff nute a bit.
PK4 Is telling me it has been overfed or it was the overwatering maybe? PK2 it telling me there is something missing (CAL and MAG) and PK5 and PK3 telling me everthing is fine :-?


Every comment are welcome. Thank you !
Sorry if something is not clear, tell me and i'll try to rephrase that since english is not my 1st language.
Pictures following in next post...
 
Last edited:

Glenkush

Member
IMG_20171224_100907.jpg IMG_20171224_100652.jpgI think I'll repot them tomorrow and start feeding heavier since the healthier one starting to yellow a bit on lower leaves. I'll ignore the wrinkled one for now (the reason I back off at fisrt)
 
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