First time caller

So, my las entry starts at 8 weeks, which was also around the same time I faced my first issues, in the form of what appeared to be nutrient lock out of some kind, probably calcium. I gave her a good flush with tap-water, then purchased PH perfect, Micro, Grow and Bloom, and started giving her that, one week down the line and all appears well , the buds are definitely benefiting from the nutrients, and the rust spots seems to have stopped, existing ones obviously still remain, but no more are developing. Onto the next problem, little soil gnats have appeared, redish and black in colour, only a few, but I'll get cider vinegar and sticky yellow up to curb that asap. Feeling positive that this CBD lemon potion is a hardy kid.