<a href=showthread.php?s=&postid=14445006#post14445006 target=_blank>Originally posted</a> by Whys
ddinox64, fresh water hobbyists can have a hard time giving up their canisters, but when it comes to saltwater, it's a piece of equipment looking for a cause. There are various ways to actually get uses out of them. But none of these functions are particularly necessary and it does require care.
Submerged liverock and a skimmer is all you need. Just about everything else is a bell, whistle, or potential problem.