Im new to using this forum and badly need some help i cannot lose this crop. 4kw lights over 2-3x6 with 18 plants in 2gal smart pots per table in botanicare aeration mix. Using head formula 6/9 micro bloom with 2tsp epsom salt added and experiencing cal/mag deficiency? Sprayed with calimagic 2days ago and problem does not seem to be improving. Noticing very weak yellow new growth with rust spots on fan leaves leaf tips. Plants were doing great until 2 days before 12/12 I added Caps bennies tea and problem really seemed to show itself plants didn't drink much water after that. Any suggestions are appreciated much!!