I just noticed these brown spots popping up on several leaves today and my first thought was maybe a cal-mag issue. some of it is hard to pick up in the picture like in pic 2 but almost looks like a brown tint to the leaf. Overall the plant looks good until you start looking closely. Blueberry Auto from fast buds on day 53 from popping from the medium. 24 hr light cycle, 60% coco 40% ocean forest,temp is about 80 degrees and humidity 50%, feeding dutch pro at minimum dose (feed full strength dose yesterday) 3ml cal-mag, and some dutch pro additives like take root, silica, and multi-total. ph going in is 6.4 and stays about the same coming out. PPM is coming out around 1000.
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Still seeing the issues after upping the dose of calmag and now I'm wondering if it has something to do with my dutch pro bloom B. I noticed some cloudy objects floating around in it as soon as I opened it but just thought it came like that. Seems to only have the issue after I feed a higher dose of bloom nutes (10 ml). I have been battling low humidity in the tent since the heat started running in the house so maybe that is playing a role in this but the issue seemed to clear up while I was only feeding about 5ml each of A&B.
May also need to get a new ph pen just to make sure I am getting accurate numbers.
Hard to get a good pic but here you can see the stuff floating around
I did just for this watering to see if it helps. I figured it wouldn't hurt to try. I usually give 3ml per gallon
I just mixed up a gallon and going to feed in a few hours.
8ml cal-mag
5ml A&B
PH 5.7
PPM 768
will update with run off numbers.
here are some pic I just took
Any idea of the pH of the runoff?