as far as I know...coco mats are used alot in ebb and flow to give the roots something to travel in...so to speak. (hell, I wish a coco mat/ebb and flow, experienced grower would chime in) The idea of using a cocmat to help in your situation is purely speculation...the idea here is good, but will be an experiment the entire community can follow. Let me know if you need help, I am watching thread...later lw