I got into some research on sub irrigated planters and all the homemade versions out there. They seem really interesting and I'm wondering if these methods might work for hydroponics. I have an idea I wanted to run by some experienced hydro growers and see if they see problems with it. What I want to do is buy a large hydro tray the size of my tent floor space and fill the bottom with plastic perforated irrigation pipe with the ends capped off by landscaping fabric. You run a fill pipe for feeding into one of the pipes in the bottom of the tray and put an overflow spout/fill indicator a few inches down from the top lip of the tray. I then fill the tray with perlite burying the pipes until I have a nice level surface on the top and a few solid 4"-6" or more of perlite on top of the pipes. Then you cover the top with black landscaping fabric to prevent growth in the perlite. You cut a circular hole in the landscaping fabric for each plant you have in fabric pots and nestle it down in the perlite. This causes the plant to feed in a wicking fashion. It's been shown to increase growth by keeping the medium at just the right level of moisture to allow aeration and feeding at all times. This method also conserves feed water by reducing evaporation and runoff. As far as I know this is used mostly for outdoor or greenhouse growing in soil. I'm just wondering if there's problems applying this technique to hydro? Am I overthinking it with the pipes? Could the same thing be done with just perlite? It's similar to a flood and drain tray method I guess.