so what do you do about the excess that falls through the bottom after being watered through the top. Would you not think that it would be a fire hazard with lights pointing up from the ground to light it? It may have a sponge inside to hold the stem and suck up SOME moisture, but that thing definitely leaks. It's like a tarp bag with a sponge and piece of plastic at the bottoms and tops. Not sure how you can make something like that hydro and if you did what would be the point? You could probably do the same thing with a five gallon bucket, so long as you have the lid.