sounds like over watering
zacmax Reviewed by zacmax on . Aerogarden growing I have been reading about aerogarden grows and wanted to contribute my experiences and ask for advice. Purchased the Pro system to get the 24/hr lights. Pitched the nute tablets that came with it, and tried the GH line, which the plants did not seem to like. Tried adding their Diamond Nectar and then Floralicious plus which is too thick for the system. Got great germination, and in veg plants did pretty well, except for the brown spotting on the leaves, which then die. Switched to a nute Rating: 5