I'm also having issues with my plant. I'm a newbie and I've read up on just about everything, but still not sure what's going on. It was going great until I first topped it. A few days later it started yellowing so I left it alone and fed it. After I fed it 1 tablespoon with a gallon of water a couple days later it started to crisp around the edges and then the yellowing got worse. The lights are a safe distance from it so maybe its ph or to much nutrients? Any advice would help greately! Dropping a pic. Thank u!