I'm using an indoor setup but this is my first with hydro/bubbleponics. I have 3 plants going and one of them almost seems sick? Its been 4 weeks and the other two are growing fine. Some of the leaves on this one are dimented and odd looking and I noticed the roots were a little brown. There's brown stuff on the net pot too. I know its getting enough air/bubbles because the other two plants have the same configuration and are growing perfect. My guess is its contamination that started bacteria or fungus growth because of the dark and wet conditions. Is this saveable if i just clean the net pot and nutrient reservoir? Or do i need to buy some kind of water additive too?