Hello/ Help please, nute burn in coco

Nice1 Phattie,
Muchos gracias, what do u think would caue the burn/ yellowing... ph?

Cheers for tha feedback brothaman

Thanks for all the help Jay and Pollack:thumbsup:

just to clarify from the 3 close up pics the yellowing at the tips is not nute burn and likely to be a nute def. or lock out due to high ph?

so revert back to feed solution or continue to flush?

That little 'bite' taken out of the leaf is from the fans bouncing the leaf edge on either another plant, or against the pot. (a canna-bruise)
The washed-out appearance looks more like overwatering than nutrient deficiency. But, you're giving nutrients, so it's likely that it's overwatering. Overwatering stresses the roots and they'll stop doing their job properly. (uptaking nutrients, air and water) Cannabis prefers a wet-dry cycle, so do not keep the soil wet. If you continue overwatering, (flushing every couple of days, for instance) you might end-up with root rot.

Coco retains salt. A monthly flush releases these salts so they don't build-up and kill roots. A lot of plant nutrients contain or are comprised of...salts.

Cheers guys,

Ive just acquired a ph meter and up and down so ill adjust my nutrient solution.

Rusty: Thanks for addressing the 'bite' issue.
With regards to overwatering, would you recommend that i let them dry a little before resuming ph adjusted nutrient solution. I didnt think overwatering was possibly with coco, but thanks for the info, i dont want to continue damaging them. The water flush was because i thought they were suffering nute burn

I'll give them a feed a post an update, hopefully signs of recovery

Thanks again

If I don't know what's in it, I refuse to use it. Superthrive might be fine for some plants, but I smoke the cannabis I grow with my wife (who has been on chemo every two weeks for the past 8 years) and would never intentionally let her smoke concentrated hormones, steroids or hemorrhoids, or whatever's in that mystery goop.
If you're using a solid nutreint product or line, Superthrive shouldn't be necessary anyway.

I have some 5 week old's that are doing the exact same thing, I gave them a dose of superthrive upon transplant but no other nutrients until yesterday when I did a foliar spray after reading this thread.

Since everyone's growroom conditions are different, please start your own thread and fill-out the troubleshooting form. The link to the form is in my signature. Copy-n-paste-n-answer the questions as best you can.

You're trying to control this grow too much.
Distilled water over tap.
Use nutes that have all the fert elements plants needs (there's between 11 and 16 of them).
Adviseable to use ferts that require less control. Foxfarm fruit and flower, 1/2 cup for every two gallons of potting soil. Just add water when necessary.