hmm.. thats gonna be tough. I've heard of some guys doing it but I'm a soil/ coir grower so i can't help you there. maybe make a thread under the hydro thread asking about it. someones bound to respond. try a few other weed sites too. good luck!Ivw been racking the hell out of my brain trying to figure out a way to lst on top.of my lids that are on my 3.5 gallon buckets in dwc. I have to come up with a ways to do it so I can still.lift the lids that the plants are in to change the Rez evryweek