Im not going to bark against your thoughts, because i appreciate it alot by any means but i know for a fact they arent getting over watered. Each plant holds a different amount which i have come to learn how much that is, and 2 days later they are dry and wanting more. The reason for frequent waterings is because someone had said add perlite to fox farms OF but that was a sad sad mistake. FFOF doesnt need jack, i dont care what anyone says, if you had perlite, your going to have extremely fast draining. So what i have to do is give it half its water, then come back 2 hours later for the rest of the watering. Let the water get to the roots and soak in the soil, otherwise its major run off. As far as lack of Mag, i wouldnt doubt, lacking everything else as i thought my problem was nute lock up. But get this, i was using the same exact schedule, starting at 1/4 strength, DURING VEGA! and they were just fine. But when they started to flower, it was required to use Tiger Bloom. Still were fine. 3 weeks later into flower i had to transport from a space that was properly exhausted to a place that wasnt and thats when this problem started. It just makes too much sense it was a heat issue. So the fact that i thought it was nute lock up, may have also hurt me as it was probably a heat issue. (been flushing for 2 weeks now) Ahh its confusing but ya your probably right.
3 issues I see 1. Over watered and 2. lack of Magnesium and 3. PH you should have PH'd your water at 5.5 to bring the PH down from 6.8
Question about the lowering the PH tho that i have been wondering. So my soil was at 7.2 before i noticed the water i was using was 8.2. So the past 2 weeks of flushing ive been setting the water to 6.4-6.6. So your saying in order to bring the SOIL down from 6.8 i have to make my water mixtures 5.5? So bringing the soil, in my situation, from 7.2 to 6.4-6.6, my water would have to be about 6.0? I would honestly love to know how this works!
Also want to add that, due to the high temps would make the water evaporate faster correct? They seem to be holding the water better already. I dont think ill have to water every other day anymore but we will see! I walk into that room now its just suprisingly fresh and cool, already liking it! And its like, the well room im using is filtering the smell because, it goes in, and comes back out smelling like the damn well room lol! Also have a carbon filter tho.