I'm in the process of building a new 55 gallon vivarium. I would like some guidance on what silicone to use. I have heard that silicone I can be used but not silicone II. I have used black silicone on my last build, and also heard brown silicone being used for attaching peat to the background so it blends in. I can only find brown silicone in the silicone II tubes. Is there a master list for what brands and type are safe to use? We can ignore the already labeled aquarium safe stuff .
I also purchased a bottle of gorrilla glue to experiment with for attaching the peat to the background? Any thoughts on this?

Mike