Well tomorrow I should be moving my Oscar out of the 30 gallon, and that means its time to prep for a betta. I have a few things on Slate rock around and was planing on building a cave like thing, would the non-toxic hot glue be safe? I have heard of it being used without problems. Reason I ask is well while cleaning out a closet I found a hot glue gun, and 2 24pck non-toxic glue sticks. I looked on the packs and it doesn't say anything about chemicals being added, and it even says safe for some food contact. Think it will be ok?