Having problems with my coco

needing help with these been having problems with them ever since I put them into coco my runoff has always been high like 6.4 - 6.5 when I put 5.8-6.0 in it looks like burn on some of the leaves and other deficiencies ive never had any problems with coco when my runoff was about what I put in the ppm last watering was 350 5ml sensi a+B and 5 ml calmag 8 ml voodoo juice I did 2 slurry test 1 with the nutrient solution I used yesterday which was 350 ppm ph 5.8-6.0 and it came out 5.8 ppm 360 and the other test was with plain RO ph water to 5.7 and it came out to 6.4 basically I wondering if any of you guys have any solution to this if not im thinking about chopping the tops and starting new clones in something else cause these are getting pretty fucked

Looks like over watering and nutrient burn? I am no expert but if these were my plants i would not water again untill the pots are light and semi dry then i would water with ph'ed water untill they bounce back. Good luck.

idk man all I know is in my previous coco grows my runoff was in good coco ph range of 5.5-6.0 and never had any problems I really think it has something to do with ph I just transplanted from solo cups that why they might look overwatered

PH of runoff in coco cannot be tested and trusted.

Depending upon brand of coco if you feed around 6 the coco will buffer slightly anyway.


Cocos rootzone performs best at an EC of 1.3. Around 700ppm @.5 and around 900ppm @.7

The only true way of knowing your cocos rootzone EC and pH value are using the 1:1.5 extraction method.


The size your plants appear to be would see me feeding them with 1.0-1.2 EC.

However though depending upon brand of nutrients and Ca and Mg levels within those nutes could leave you lacking in Ca and Mg.

When using calmag supplements with RO water you should initially elevate your levels up around 0.2-0.4 EC in just the calmag and then add in the rest of your nutes to your feeding levels.




J

at clone stage i run straight up dutch master advanced grow for 4 weeks at 3 times a day 1 min feeds at 600 ppm round 2 ml per ltr i think u need more feeds bruva alot more

and i keep my ph at a stricked 5.5

I just watered with 500 ppm 5.7 ph sensi A+B calmag voodoo juice and zho guess ill see how they take it if they don't take it well im gonna chop and take new clones. Do you guys have any suggestions on soilless medium like sunshine advanced #4 or promix or Humboldt mix ? with low ppm and stable ph?