Sour Stomper / Blue Light Special / 4AM

On 3/23, I noticed the Sour Stomper had very slight yellowing between the veins, purple stems, slight clawing. I am thinking this might be a magnesium and/or other nutrient deficiency, as my feedings have been fairly low to this point (1g/Gal mega crop + 1 mL/gal calmag) and pH was a little low for good magnesium absorption (5.5-5.8). In addition to that, coco coir grows are known to need extra calmag. I was only using 1 mL calmag per gallon, and since it was RO water my ppms were very low to begin with. Adding 2 mL calmag to a gallon of RO water brings it up to 110 base ppm. I changed up my feeding after this to 2-3g/gal mega crop, 1g/Gal sweet candy, 2.5 mL calmag. Will feed recharge once this week at 1/2 tsp per gallon. I was also concerned about light stress since my Spider Farmer SF2000 was at full factory power and only 32" away from the plants. I dimmed it down to 2/3 power and raised it slightly. 3/28/20 update - It looks like the extra megacrop, recharge, calmag, and raising the lights helped with the issue I was having. Plants look much greener and happier. Started LST today on Sour Stomper and Blue Light Special. Going to wait a few more days on the 4AM. I'm hoping the LST isn't going to make the plants too wide as I'm working with 3 plants in a 32"x32" tent. 3/31/20 - Plants looking great health-wise and I'm amazed at the effects of LST and leaf tucking after just a few days, looking like they'll have nice flat canopies. Feel free to leave any suggestions or comments on my LST job