Need Help with Identifying a Deficiency

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Houston, we read you.

CannaCountry said:

Houston, we read you.

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lmao I’m trying to post pics from my phone and it won’t work

Ok so these are pictures of my most fried plant at the moment. I’m probably about to feed a few of em with RAW phosphorus and just see what happens.

Whoa Nelly...hold the phone! I wouldn't add anything else just yet. Are you sure of your temperatures, your light height and your nutrient regimen? That looks like a bit more than a phosphorous issue. As I mentioned earlier, you're already giving her multiple PK boosters, why do you think you need to give her more? Just hold off and see what some of the others here say. An extra day or two is not going to make a difference at this point. With only 1 pic and your information (especially all the different things you mentioned you're feeding), my gut says; nutrient burn.

Yes I feel like we might be missing something here...that's a very severe problem. I agree with Canna, looks like a textbook severe nute burn. At mid to late flower I always have to cut back my feeding to about 1/2 of what I was giving, have you tried cutting back on your nutes altogether? Bloom boosters included?

ya i was doing that for awhile about 5 feeds like cutting back to 50% nutes or 75% nutes and ya ive also had previous feeds during flower like week 2 and 3 where i was only feeding water and calmag a few times.

Some more pics of my other plants that are turning yellowish purple also are linked down below

sorry not the greatest of pics but ill get some more later on today

I'm recieving mixed signals on this one...but I'm pulling strongly towards there being too much of a certian nutrient, possibly even locking out others due to the lack of it...looks so very much like nute burn!

Fury0117 said:

My humidity is 55% currently I normally lower it 5% a week also you think my soil could be phosphorus locked out if I’m using Aerated ReadyGro coco coir and phing at 6.2? Also I’ll have a few pics up soon

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Quick and DIRTY way to check!

Fury0117 said:

sorry not the greatest of pics but ill get some more later on today

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I'm sticking with a PK issue. Find the cause and save the plant. Either way she needs a FLUSH STAT!!
I personally would start treating it as CoCo after the flush. Lite feed and a couple days to recover. Good Luck! 5.8 NO HIGHER.

If it were burned... more of the leaves would be toasted. This is a PK issue. Notice the green?

Have you tested the runoff and compared it to the pH/EC of the feeding solution? This is simple and can help determine if you've got a buildup or deficiency in your medium, and whether your medium is high/low in pH.

MrPuffTuff said:

Have you tested the runoff and compared it to the pH/EC of the feeding solution? This is simple and can help determine if you've got a buildup or deficiency in your medium, and whether your medium is high/low in pH.

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I actually had a salt buildup problem where my runoff was like 3400ppms+ and my feeding ppm was like 2400ppms+ (this was in like week 1-2) but i have now fixed this issue where my runoff ppms are always lower by like 200 to 400 ppms than my actually feeding mix' ppms.

Fury0117 said:

I actually had a salt buildup problem where my runoff was like 3400ppms+ and my feeding ppm was like 2400ppms+ (this was in like week 1-2) but i have now fixed this issue where my runoff ppms are always lower by like 200 to 400 ppms than my actually feeding mix' ppms.

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Feeding at 2400... DAMN!