Struggling to fix deficiency

Ok guys I got told this is magnesium deficiency, Growing in coco coir, been adding a tablespoon of Epsom salts to my watering for the last 5 days can but I seen no improvement, am i supposed to add epsom salts every time i water which is every day???


it's a advanced bio diesal mass autoflowering strain about 38 days old under a 250w dual spectrum bulb, changed to metal halide so I could get a better pic for you guys,


Been feeding biobizz bio grow, bloom and recently started alg a mic, didn't ph my water before but I have a ph test kit now and been using that the last few days to ph water to 5.5/6.0

Its your ph bro. Get a pen. You are in lockout.

Save up and buy a pen, you cannot cure problems blind with coco. Coco is awesome and with a simple ph/ec pen can keep it tuned in really tight. That being said, its either lockout from off PH or over feeding, coco will store nutes eventually causing burn if you're not monitoring intake/runoff ec. I didn't see any burnt tips but i did notice a little tacoing on the leaves and curling some strains do that when starting to burn.

I did a flush with water and then a few hours later added my nutrient mix ph'd to 6.0 using my ph test strips, do you think the plants will improve now? I will get a ph pen next week