I have a bubble stone that I want to put in my tank. The tubing that I am going to use is clear and from a breathing machine but never been used it it is the right size but it is to hard of plastic and leaks at the point of contact with the bubble stone. I thought I would glue it so thats what i did. I used super glue brand fix-all adhesive. Then when I got done I thought "what if this is toxic to the fish" So there is my question will this be safe once it dries or did I just waste a bubble stone?