Join Date: Dec 2007
Location: Port Washington, WI, USA
Have you thought about using silicone aquarium sealant? You could use the black sealant to coat your insert with a black color, or you could use black or clear sealant for the base and put some kind of coating on the sealant. Sand or gravel might look cool on top of the sealant. And you could use colored sand or gravel. To do this, you would probably want to buy silicone in the caulk-gun tube and squeeze some out onto your insert. Then, use a paint scraper to spread the silicone out into a thin layer. If you're going to put a coating on the silicone, you have to do it quickly, before the silicone forms a "skin". When you're done, let the whole shebang dry for at least 24 hours and you're good to go! Oh, one last thing, if you don't buy silicone that is made for aquariums, make sure that the stuff you buy is 100% silicone and has no mold-inhibitors in it. Those chemicals would be bad for your fish. Hope this helps.
Brian J. Torreano - Owner