Looking to buy a stealth hydro system. What is the difference between DWC and bubbleponics. I am teetering between the DWC with 4 pots and the 6 pot bubblepnics. The only difference I see is that the bubbleponics seems to have an airstone twice the size as the 4 pot DWC. Also since the watering or feeding of the plants is automatic how exactly does that work. Is it a timer system that decides how often to feed the plants. I was wondering if plants can get overwatered as it is automatic. Any advice on these systems is cool. I was also considering the one pot DWC. However I like the 4 pot that comes with 6 months of nutrients and ph test strips.