Before I even think of putting water in my tank again, I wanted to reseal it with black silicone. There are no leaks, but the edges are a bit frayed from all the coralline scraping.I want it to look like the day I bought it.
Does anyone have any idea which silicone would work best? Also, do I just reapply over the old one?
Thanks,
Adriana

Also, is there any way to reinforce an acrylic sump?