Those growrocks will hold quite a bit of water, even with the large spaces in between them. Try this for yourself, fill a pot with wet growrocks, and let it sit for a day or two, then dump it and check the rocks for wetness.yeah but i may have to do it like 10 times a day because hydroton grow rocks are not like rockwool cubes..they do not contain as much water..
wassup, there are not too many of us ebbnflow guys on this site. That I have found anyway. Do you got a journal. If so, put up a link. I want to see your grow.That system did not look like what I know to be an ebb and flow system. It looks like the plants float on the water. My ebb and flow system floods a tray once every so often, then drains, the plants sit on the bottom of the tray. Am I wrong? If so, please let me know what kind of system I am using.