I’m setting up my 180g aquarium and I made a volcano for my bubbler and I got so excited without realizing the silicone I would use. I used the heavy duty gorilla construction adhesive it is waterproof but my concern was will it hold those rocks and is it safe for the fish? I put it out on the sun for 2 days before I put it in my aquarium. I haven’t fill out the tank yet because of my concern. Will it be safe?