First coco

It is heavily locked out due to a salt buildup in the root zone from the recent transplant. Your input pH of 5.9 is good, but your MAC1 and Animal have completely different nutrient thresholds. MAC1 is naturally a light feeder that easily shows Nitrogen toxicity (dark green, clawing leaves), while your Animal strain has likely stopped drinking entirely due to high eC in the pot, causing it to display deficiency like symptoms and burn. When you move a plant into a new, larger fabric pot, the root zone dries out unevenly. The uncolonized coco acts like a sponge, absorbing water while leaving heavy fertilizer salts behind around the old root ball. You cannot fix this blind. You must figure out exactly what is sitting inside that fabric pot. Water the plants until you get at least 20% to 30% of the liquid draining out the bottom. Collect that drainage water and test it with your EC/PPM meter. If your input is 900 ish PPM (1.35ec) and your runoff reads over 1200 PPM 1.7ec your substrate is saturated with built-up salts. This salt trap actively pulls moisture out of the roots (osmotic shock), preventing the plants from absorbing food and healin.g Never flush coco coir with pure, non nutrient water. Doing so destroys the chemical balance (cation exchange capacity) of the coco fibers, causing severe calcium and magnesium lockouts later. Mix a batch of fresh water using only your CalMag to reach 320 PPM 0.45ec) add a very light dose of Canna Cocos A+B until the total solution hits roughly 500–550ppm. Adjust the final pH of this flush mix to 5.8. Pour this weak solution heavily through the pots until the runoff matches your input PPM. This clears out the old salt pockets without shocking the medium. Back to the races with you. Best of luck bro!