Hey guys!
So I am planing on making another viv , and had a question. I want to adhere river-stone to some plexiglass, and some flourescent light difuser to the glass of the tank. I have heard some people using hot-glue to adhere stuff in their vivs.

Is hot-glue safe for my FBTs setup? (the toads themselves, the plants, moss, inverts, fish)

Is it safe in an 'underwater' setting? (ie leeching, chemical secretions etc.)

Or would aquarium sealant be a better choice?

Is aquarium sealant strong enough to hold the stones?

I will sketch up a drawing soon to show what my plan is.
Thanks!