Check page 9 in the manual...there are a few things to check.
If you don't have the manual, it's on this link
http://www.atlantareefclub.org/forums/showthread.php?t=5599">http://www.atlantareefclub.org/forums/showthread.php?t=5599</a>
[QUOTE=][B]ckwatson;104296 wrote:[/B] does any one know why my coralife 65 would just stop making bubbles?[/QUOTE]