Brown Spots - flowering?

[Old Toker]

Cal-mag is commonly used to solve a calcium deficiency. Which is often caused by low PH.
Hard to say for sure if that's your problem. This link my help to diagnose a calcium problem.

Calcium deficiency

peace GG

Thank you GG!
Definitely looks like my problem. Am I the only person flowering in Coco with Ph under 6.0? Well...it's not under 6.0 any longer. Guess I'll raise it again to 6.2 for tonight's feedings and see if that helps. I am already feeding to runoff and my EC @ 1.2 ....shouldn't be too high. If this doesn't help I'll try some kind of cal/mag product. Fortunately the situation doesn't SEEM to be getting worse (did I say that out loud?)....so hopefully trying small adjustments will fix a minor problem without adding to it.
Thanks again.

 

[Old Toker]

I noticed some experienced dudes around here using 6.2, 6.3 ph in coco and thats what ive been doing with better results

Thanks for the follow-up Hyposomniac!
My water temp is in the high 60s......I'm beginning to think I may have just been feeding with too low of a Ph for flowering in coco. Guess I'll know pretty soon.
I can imagine that you were happy to discover that you did NOT have Spider Mites. I'm hoping that's not my situation either. Good luck with your plants.....I'll update this thread when/if I ever solve this problem.

 

[Old Toker]

OK.....good news. Looks as though MY problem was caused by too low Ph causing a calcium deficiency. Within a few days of getting my Ph up to 6.1....no more problems. Thankfully NOT Spider Mites this time.

Thanks everyone for the help and suggestions! Really appreciate it.