What glue is safe to use?

[Dube]

not sure if it would hold up for what you need...but i have also found hot glue to be safe and reliable.

i couldnt say from experience that it would or would not work but i do know that i used hot clue in my beardie tank and it failed. id go with the great stuff but thats just my opinion, put the perch in spray the great stuff around the ends on the wall. let it dry for 24 hrs shape it to size(it expands ALOT) and if there are any dimples in the foam just use more great stuff and when your done just cover it with 100% silicone and its will be 100% toxin free