RW doesn't really hold water?? RW is like a friggin sponge and holds water a long time. That being said when I ran a traditional ebb&flo I would flood about 4-5 times a day for 15 mins a shot. Now I'm running Ebb&Gro system and flooding 5 times daily for 15 mins with 4 of the 5 floods during "daylight" hours.:jointsmile:
tinytoon Reviewed by tinytoon on . hydroton rocks I have a ebb and flow hydro system. how often should I water? Rating: 5