I had my tank set up today with the waterfall tubing hidden behind a very creative Great Stuff foam background and the water falling down an intricate curved crevice with small plant holes carved into the foam. I have the plastic grid cut and hinged to create a pond in the front side of the tank. I finally found some rubber corks for the drain hole which came pre-drilled in the tank. (I don't recommend drilling a hole in the bottom of a glass tank because it can crack easily). I drove across town to buy some tropical plants which I found had gone up in price .44. OK, whew!, ready to plant when I thought I'm gonna test it one more time with water in it. Of course, it leaked from the crack I had caused....from the drain hole and maybe even across the front of the tank. Long story short, I have disposable plastic gloves this time for the silicone repair I have to do. ALWAYS TEST TO SEE IF YOU HAVE LEAKS BEFORE PLANTING.