I'm not sure if this will work so I'm gonna fire it at ya and give me your opinions. I've got one successful soil grow under my belt and want to build a small rdwc system.

I don't smoke but my friend prefer sativas so I want to go with 1 Sour Diesel and 1 Girl Scout Cookies

Cabinet will be 24"x30"x80" built out of plywood and lined with mylar. My space is very limited and I want to add a seperate 2x2 Veg tent in the future.

I will have 2-4 gallon grow pots and a 4 gallon control pot. 6" Net pots with Hydroton media. Control may be outside the cabinet depending on space. I'm thinking a 15-20 gallon tote for a reserve. I want to put a float in the control bucket and gravity feed auto fill.

My tap water measures around 60 ppm TDS so I am not going to bother with RO at this time to save money. I also cannot afford a chiller atm so I am hoping my basement will be cool enough to keep water temps low. If not I will be using ice.

Lighting will be 4-QB132 LED's which performed well for 2 plants in soil. I want to build a COB system as money allows.

I want to use 1-2"x4" air stone in each grow pot. How much air will I need to power these 2 large airstones? I'm guessing a walmart airpump will not be big enough, but I don't want to bubble my water out of the buckets either.

I'm figuring I should circulate my water around 100 to 150 gallons per hour. Is there a good inline pump available for such a low flow rate, I'm having trouble sourcing one?

Please help a noob get things sorted out and Thanks in advance.