The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
You don't want to use any type of glue for any plumbing. The bulkheads should be threaded, so you will want to wrap them with plumber's tape and hand tighten them. If they leak, you will gently continue to tighten. Over tightening can cause leaking and crack the glass.