I have a 20 year old RES. And my dumb jerk of a turtle likes aquarium silicone... He really likes to eat, claw, or try to burrow into aquarium silicone. And I've had 2 aquariums leak on me. The next time will be the last and my room mate and landlord will declare no more turtle. With the latest Aquarium I made sure it was super level with wooden shims. But I'm not satisfied.
I read enough to avoid gravel. Sand and substrates can get really dirty with turtles (although I am open to this idea if there's any recommendations). At one point I was using filter ceramic rings as a form of substrate for him to dig around in.
What I was thinking about now is some sort of plastic (or whatever) guard to just block him from getting at the silicone. I found this but was a little concerned about it having something toxic in it.
https://www.americanfloormats.com/clear ... bkQAvD_BwE
Does anybody have any experience with something along these lines? Protecting the seams from a destructive turtle?