Adhesive to attach dry rock ruble to glass?

[West1]

I’ve got the itch to try another diy nano concrete background.
My plan is to break up a lot of dry rock into pebble size or smaller and glue it to the back pane of my frag tank. It’s been many years since my last build was done and products ingredients change over time. With that, is GE silicone I or Dow Corning 795 still reef safe?
Any other suggestions on an adhesive for the back pane of a Nuvo 15?

I’ll make an official thread once I get going…

 

[KrisReef]

Why not just used aragonite gravel, you can pick coarse or fine or a mixture and not risk having rock rubble flying in your eyes when you crush it?

THe 100% silicone products should be fine, just avoid anything with anti-mildew additives.

 

[ZoWhat]

Any clear silicone that's labeled 100% food-safe or 100% food-grade