Here is something that we are running into. We are using something like an aeroflow tube system that I built has 4 plant holders. We have used this before and it does great. Thing is we will have 4 plants doing great, then out of the blue one will look like it is not getting water. Pick it up plenty of spray, the others are doing great. Anyone ever have this issue? I'll try and get some pics.
if its spaying maybe over water this link may help The Complete guide to Sick Plants,pH, and Pest troubles! - International Cannagraphic Magazine Forums