Sorry I've only done soil grows..I'm a complete noob to hydro. Whats the point of of Ebb/grow system? like this - http://www.htgsupply.com/Product-Ebb-&-Grow-12-Site.asp
It says it flushes 3-4x a day. What good does that do? Automatic watering or something?
It says it flushes 3-4x a day. What good does that do? Automatic watering or something?