4 weeks into flowering, diy 32 site aero, HELP

I have lemon skunk, NL, and Pure Afgan clones 4 weeks into flowering in a DIY aero setup.

Plants are burning on the tips along with yellow veins starting from the top of the plant moving down.

I use GH flora micro and flora bloom at a 1 to 1 ratio.

PPM: 2000
pH: 5.8

Need some help on what to do. I added some magical by technaflora which has magnesium, calcium and iron. seemed to help a little but still not entirely any one have any ideas?



Link on how to build setup...
https://www.rollitup.org/do-yourself/156863-grow-2-lbs-2-x.html

your ppm is way high. i flower at 1200 and am thinking thats to high as well.

yeah i considered that. havent tried to lower it yet. i tried a grow with the same nute mix and a lower ppm previously and had the same problems.

im thinkin it may be a potasium deficiency caused by the 1 to 1 ratio of my nutes. thinkin i should use more bloom than micro maybe a 2 to 3 mix??

any one have any other sugestions? i could really use some help