COCO COIR Lime green and tips burning

[joeman098]

PH- 6.0
PPM 1029

I do not know why the one plant is lime green and looks like a magnesium deficiency. It is larger than the other plants so I thought it was just more hungry, however, now the tips are also burning. Any ideas of what I can do here?

I am using auto pots and growing in coco coir so I can't flush.

[Ckbrew]

Are they the same strain or different? Genetics may be part of the equation. Growing in coco/perlite I prefer pH 5.8. You can try a small increase in grow nutes for just a few days. Bumping up the calmag also is an option. Are you feeding from a storage tank? the pH can drift in there when things sit for a while.

[OldManGrower]

What are you using for nutrients? Is this plant a different strain from the others? What is your PH in/out? Could be a lot of things or nothing.

[Bluey]

The rear left one looks more like nute deficiency and the rear right one more like nute burn.

The yellowing leaf tips are typically a deficiency and often accompanied with symptoms that are tell tale signs of that.. light green, loss of pigment, etc

Nute burn is typically brown leaf tips.

[joeman098]

So here is an update, I have found spider mites. I am going with using hydrogen peroxide as I can't think of anything else to use during flower. They are all different strains. That was a big mistake in regard to the nutes.

[OldManGrower]

Not really a mistake so much as a challenge. I have always grown multiple strains at the same time and always have one "problem child" in the mix. Makes diagnosis a fun challenge if you like that sort of thing. As it is my hobby, it's all fun and every challenge I overcome increases my knowledge.

[Bowhunterwoody]

Alcohol works. 3 times 3 days apart, and check. 50+ % . Worked for me outdoors. Never had
a problem indoors.

[changeofpace2014]

you will have to consider using something that helps with the roots...I could not find nebulas recommendation (hydra guard) up here, but went with enzyme complete and included it daily so I would not have to flush....(access reason)....i.m.o they look ok..just a note: if you are mixing say floara trio with tap water you are not getting the entire recommended nutes because the tap water usually has a dam good head start on your e.c target...try some r.o water to mix your nutes with...I have same issue with plants not getting as dark as they should, and this was one of the reason I started using r.o water with flora trio.