Not that this is the cause, but have you heard about the HydroHut outgassing problems from last year? (how old is yours, and are you the first owner?)

Hydrohuts killing plants

Headshake: I feel your pain, bro. :thumbsup:
Rusty Trichome Reviewed by Rusty Trichome on . Trouble with bubbleponics I am one my 3rd day of bubbleponics and am having problems from the get go. second day of production i woke up to my ressi full of foam and the pump was barley working. does anyone know what causes this? Also i noticed my ressi water was stinky. what would cause that to happen. my ph level was 6.8 but now is 6.4 and slowly dropping do to ph down i put in today. I also live on well water is that good to use? My plant are starting to turn yellow at the bottoms and are drooping more everyday. Rating: 5