Calcium defficiency or something different

A lot of what i am reading on plant diagnostic sites show a defficiency of potassium giving similar results. That one thinking about it and looking at the bottles, they got what ever was in the ocean forest for a bit, then big bloom and grow big which is 4 and .7 percent starting around 2 weeks going into flowering, then adding the tiger bloom which is 4 percent more and reducing the grow big to half which is 2 percent, so upping the potassium 2 percent when flowering started and have been cutting the grow big out, so was close to what i was giving during veg, and now about half total. I never really could feed any of these heavily. It was right at 1 quart of the nutrient mixture in my 5 gallon buckets and i'd get too much nitrogen, and i havn't increased thru out. I basically feed the same amount now as i did at 2 weeks before flowering. I have stayed close to the feeding chart but didn't use some of the things during veg since the ocean forest has a lot of those things. I at one point had to dial the grow big back a hair, and had a slight calcium problem with my 6 week finisher but going by what the leaves say and doing slight adjustments and keeping the feeding consistent they have been super healthy. Kind of when the plants really started to work on making buds did the leaves start to really change. flowers seem to be doing alright. I really have no idea what they should look like with the amount of light they are getting, so they seem good according to my one harvested, and the other girlscout cookies that isn't having this issue, but they seem about right, maybe a little small but pretty close to the other plant.

I am unsure how much of the nutrients built up in the soil are removed when doing so, i misplaced my ec tester to test runoff, but i did over this past week between light feedings on the water days put a half gallon of ph'd water with sledgehammer which breaks down the salts that the nutrients form, and then let it sit for an hr and put a gallon thru each 5 gallon bucket. Pretty much on par with what fox farm recommends, but i wash as much as i can out as the mix of soil i have drains well. So 2 soil flushes this past week to get as much removed from the soil as possible and replaced with a light dose of just the tiger bloom, which does have a little nitrogen in it as well.

the main nutrient for flowering i am using is tiger bloom for now. I was using the big bloom, low dose of grow big, and cal mag once a week until they started showing signs of leaf discoloration. I had been messing with a plant that was ready to harvest way faster then it should of, and spent a little less time with these the last 2 weeks. Just fed them normal and gave extra cal-mag, waited a few days, gave a little more, waited a few more days. Never got to the point of seeing any change, but the leaves started greening up, the ones effected by the deficiency started with the little gold spots that got bigger and started turning yellow. There is a slight tip burn on some of the leaves in the canopy as well. I kind of thought there was something else in excess there because the leaves didn't do what they had every other time i have fed a little too much nitrogen which is get dark on the ends and curl down, but never burn the tips. The tiger bloom does have potassium in the form of potash, but that one i have cut in half as of today according to the fox farm chart, and along with what is going on as well. I also stopped feeding the big bloom which has more potash as well. All i put in today was 5ml/gal of tiger bloom, 15ml/gal bembe, and 1/4tsp cha-ching. The first is the food, second the sweetner, and the 3rd a resin enhancer.

You are in bloom, so water-only irrigation could have it's setbacks... does one of your products only contain some N/P? a light does of that while you hope things get in balance may be a path to take, but i'd suggest water-only for a few irrigations with 20% runoff or more. Pot size would impact that a bit too. if you see a yellowing starting from bottom up, add some N.. if leaves turn blue-ish, add some P. Stay away from K if you can. Since you bombed it with cal-mag, stay off that too. After a week or so or ~3 irrigations, go back to a balanced feed at a steady pH like you have.. just adjust it down a bit.. try to reduce the K portion.

Yeah, that's why i think it's lockout or pH-related, but you can eliminate the latter.. Probably a K-tox. That can cause Ca and Mg, et al. deficiencies. (think fe and zn too?) this is very liekly an overabundance of things and the plant can't get what it needs in proper proportions even though it is abundantly present -- just not easily available. Like 20 people trying to all run through 1 small single door at once. Some people are simply going to be crushed and left behind.

Another thing, i have kept the ph in check along the way as well in order to keep good nutrient uptake. When these started showing signs of this, i raised water and nutrient ph a little to bring the soil ph up. Runoff is mid 6's on all 4.

The leaves are getting the brown spots like with calcium deficiency, the yellowing of the leaf as well, but they have not reacted at all to getting a large amount of calcium. The leaves are also very thick and rigid feeling up top, obviously too much nitrogen in them right now with all the cal mag used. Kind of started out slowly like my gsc plants, but the first one that is harvested just needed a little extra cal mag, and the current one the same. These things just do nothing but exhibit signs of high nitrogen and the thick leaves when given calmag. I have been battling it with these for the last 2 weeks, and flushed the soil out real well with sledgehammer 2x this week and continue to feed the stuff for flowering, but would like to clear these up for their last few weeks of life. I am thinking about trying lime, which is calcium without the nitrogen or magnesium. It seems like the best thing to only add the calcium and quit adding nitrogen. Any advise from those with more experience then me would be greatly appreciated.

well, you provide the thing that it looks like, so dial it back. At least the cal and mag.. possibly k/p too. you don't want lots of any one thing. pH, concentration and ratios of the nutrients are all important. check out some links in my profile about nutes and maximizing yields (not my info, but from real research of people with doctorates). I do have a nute spreadsheet that could be useful, but found a bette ronline one i also have linked in my profile. you can help eliminate possiblities by seeing what you provide. excellent posts on rollitup and grasscity on nute formulas etc can be found for reference. So, i'd dial it back.. water-only irrigation pH'd to ~6.5-6.8 in soil. Wait for leaves to lighten a bit below. at the least you have to dilute and overdose given before this point.. little extra runoff can help, but don't flood it to the point the soil and rootzone gets disturbed.