Pros: Great root development, Fast Veg, good yield, simple and effective flush
Cons: if temp or pH are off for any length of time, you will lose the entire unit, takes several runs to get dialed in, more organics=more issues, humidity
Keys: Chillers, recirculating system(
Current Culture or DIY copycat), CHILLERS, enzymatic, nutes/ppm/EC, quality chillers and temp control in area where they are stationed.