SOS - Deficiency getting worse...

[farmerjim]

Hi folks, I noticed this start a week or so ago but thought it was heat stress from adding the phantom dual 315s to the existing phantom. Looks as though things are getting worse and wanted to check-in to see if anyone has any suggestions.

Also, when I changed my res out on Friday I made sure to put in extra CalMag as well as a P booster (KoolBloom POWDER)... could I have overdone it with the powder?

[Chefbjy]

Did you use lkb at all? It's supposed to be a primer for the dkb. It's pretty easy to over do the powder if you haven't got the plant used to the high boost from dkb. Wish I knew more about hydro to make a suggestion. But I believe since you know what changes were made before this occurred that would be a logical assumption. The added light may have contributed slightly if it's too close.

[DankwingDuck]

I know you probably already checked this but what is your pH it look like a possible manganese deficiency tell me which could be due to high pH I had this problem on my white widow I adjusted the pH back down to where it should be an issue went away

[DankwingDuck]

Well I don’t want to say same problem but it looks similar with the brownish copperish spotting

[DankwingDuck]

This was mine but I caught it early . I could see how it might continue to the degree of what your leaves storm had I not dealt with it immediately

[farmerjim]

Chefbjy I did use liquid kb. Ive probably been using it for a couple of weeks. Originally, I thought it was calmag so I upped that. Then when I thought it was lack of P I decided to go for the powder. it looks worse so I've started thinking Manganese like DD mentions but figured it wouldnt hurt to get some opinions.

DankwingDuck I'm going to check my pH manually. I wonder if the Bluelab needs to be calibrated. If anything, I tend to keep my pH on the low side (5.6-5.8) but that means nothing if my sensor needs calibrating... lol

[farmerjim]

and thanks for chiming in

[farmerjim]

manual pH test looks on the low side. Bluelab guardian is reading 5.6

some more pics...

[DankwingDuck]

It could still be a lock up due to ph . Mine was high but sti off just like your . First step imo would be to fix the ph and gove it a few days . Maybe mark a few leaves to see if it spreads or stays the says . I typically remove all my damaged leaves so I can see if new damage occurs but your in flower and may not wish to be cutting away at your lady .

[farmerjim]

yea... i think I'm landing on a Ca def. My pH is always low so regardless of how much calmag is in the water, plant won't take it up unless its above 6.1 (or so ive read). going to keep a close eye on it

[DankwingDuck]

I have read about ph effecting nute intake even when in range . Which is why I let mine flux in range .

[DankwingDuck]

If your ph tends to drop over time start it at the high end and let it drop . Mine always goes up so I start mine low and adjust it back to a mid 5 range when it goes above 6.5

[D.A.A.S.69]

Looks like calcium to me farmerjim

[alltatup]

I'd say flush them for a couple of days, and lower nutes. You're getting close to harvest. I bet you she looks much happieir after a two day flush in plain pH'd water.