Have A Plant Problem? Check Here First

hey neone know if using apple cider vinegar as a ph down kills mycorrhizae? i used in on some month old clones and the started to get deficient in everything ever since then its been an up and down battle from underfeeding to overfeeding to nutrient lock. i stopped using apple cider vinegar in my teas and just let the ph go i mean i still check it for idk what reason and its usually 6.3 to 7.1 at the highest ive ever seen it. So i flushed the plants with plain water half tap half RO ph of that is usually no higher than 7.15 than i made a tea consisting of 1/4 strength super thrive, 1/4 tbsp/gallon mollasses and 1 tsp/ gallon humic acids 8% along with foxfarm happyfrog soil cause i cant afford mycorrhize right now but i jus strained it in the water then brewed and leached the tea through my pots. let sit for 3 days and theytunedall neon green with purple stems and the purple is almost dark with a slight red hue to it and it seems to climb up the stem with the top leaves a real light green and forming claws also the veins look more exxagerrated on the leaves or more "indentated" i guess is more like it also the one plants got a few fan leaves that are cupped and turned sidewaysat a 90 degree angle and has yellowing and falling leaves in a random order i grow in a coconut/soil mixture. idk but i feel like no matter what i try to do:just leave it alone, give extra light nutes, give normal strength nutes, flush and replenish with balanced ratios and myrobes, just chill and give plain water for a while, foliar feed instead, etcetcetc... ivetried every approach i can think of and it all seems to not be right. i feel like ther is something wrong with the ph but im really reluctant to use apple cider vinegar to lower it cause i think it kills microbes and i cant do that i worked in a hydro warehouse that made me sick cause i couldnt feel nething from those plants t all i could feel was greed and lack of respect for the planet and true life...neways ive narrowed it down to my ph meter being bad or something but when i use the reference 7.0 solution it reads perfect but that to me still doesnt mean ists working perfectly when dipped in another solution its just one of those red digital ph meters from Hanna Instruments and ive heard that they suck...neone else have one? problems? this indoor stuff is making me go looney for real back home we just use good compost and make sure pests are down and just pour water on the plants with the occasional fish and seaweed tea and its all good ne advice with all organic tean and soil/coco indoor growing temps are Veg: 400 watt MH and 4 bulb T% fixture 85day75night avg humidity:40% Flower:400 watt MH and 1000wattHPS 80day65-70night avg humudity25-35% oh yeah i had tinnie little microscopic crawlies in teh soil so i did a pyrethrum/rotenone flush at 1tsp/gal let sit overnight next day did the plain flush as described above and now this is where im at my nutes are teas but i use Age Old Grow, Fish and seaweed and Bloom in the teas all 1 tsp/gal and humic acids 1tsp/gal with 1 handfull earthworm castings per 2-5 gal also mollasses Blackstrap for flower Brer Rabbit for veg(lower in nutes than blackstrap)al 1 tbsp/gal or 1 tsp depending on how much other fertilizer i use like for small plants in 4" pots. oh yeah and the ones in just straight soil or mostly soil are not getting bad as fast mostly potassium def.-leaf edges and tips crisping and yellowing but the yellowing/dying off is more rapid in the coco/soil mixture note also that it seems the yellowing and dying is startig from the bottom while the cupping ,light light green color and clawing and indented veins is starting at the tops and the dark purple/reddish is coming frm the bottom of each branch, not the main stem, and working up​