Thanks, a lot more leaves have decided to join the few that were yellowing before, and they are not bottom leaves that are lacking light. I fed them what I was feeding them before that they were happy with. I also dropped the humidity during flower as opposed to what it was during veg cycle, but the lowest it has gone is 30%.
You post saying you likely have a potassium deficiency..someone agrees, and you proceed by feeding the same exact thing you have been feeding to now in same ratios and can't understand why the problem got worse? Now you decide to add cal-mag? When you think it's a potassium deficiency? You seem to be all over the place..with no pics to see the progress, it's hard to comment, but again..if you suspect a potassium deficiency..adding cal-mag is not the answer lol Cal-mag is calcium and magnesium...no potassium in there! What nutes are you using that doesn't contain calcium? can't make much sense of the pic as only one leaf seems to be affected. pics of the whole plant would have helped.
I haven't fed them anything recently, just water in case it is a nute burn instead of a potassium deficiency, which looks the same to me. I started using Alaska Morbloom 0-10-10 that has a lower potassium ratio. I was using some orchid food previously that the plants were happy with, and it showed no calcium also. I was doing more research to see what the plants need during flower and I am using filtered water (not softened water with salt) so I don't believe they are getting any calcium from that either, which is why I decided to get some calmag to add to the water to rule that out as a deficiency. I'll get some pics today.
Best of luck, i can't really help in this scenario. No idea why you would stop a feeding regimen that you say your plants were happy with and all was working..so you switch it? Again, more confusion..more things that make no sense..i wish you the best...hope you get it fixed! happy growing!
I switched to a "bloom fert", obviously too soon for the plants. Lesson learned. The one showing the most distress is where my return vent is to the room and it has been getting relatively cold at night. The room stays within tolerable temps (lowest has been 66 degrees), but my thermometer is on an adjacent wall. I am going to move the plant to see if the return air is affecting it. If so I can duct it away from where I have the pots sitting. Not sure if this would contribute to my problem or not.
Thanks, my first grow so I am learning. I am surprised how fast the problem escalated.
