hey guys, So this is my second post, I have been reading and learning from the website for quite some time . Figured I would submit picture or two give a brief description of what I’m doing , and if anyone feels like giving me some advice or chatting it would be greatly appreciated . -aprx 4 weeks old (after roots appeared) -I have a 4”x5” troff NFT - reservoir is outside of grow tent light proof with an air pump running . The temperature of the nutrients is 68°F - started them at 250ppm 1 week -then 500pm 1 week -750pm1 week -1000.ppm current Using a TDS digital pen (calibrated often) -Using a two-part nutrient solution for grow. -using supplements and enhancers (Will submit pic) -average temp of room 76°F (Night 62°F ) - average humidity 55% . - Fresh air being supplemented from outside through a filter to keep insects -400watt metal Hallide for grow -running at 12”-14” from top of leaves -running at 150k-200k LUX Not sure what else to say got a couple spots that have shown up. Noticed there was a couple holes in a leaf, I looked for bugs with a 100x microscope and seen nothing I’ll submit a few pics. Please comment with any advice or questions thanks so much