I have a 55 cichild tank with a Magnum 350 deluxe canister filter and well the machine is having problems every time it goes onit makes the clicking noise and doesnt stop. For 2 nights so far it has been doing this. Very Early this morning about 3 am I tryed to troubleshoot but it diodnt work. The pump isnt pumping enough water through the machine. Like the water isnt filling all the way up in the canister. I dunno what to do It has never given me problems. Should I sell it on ebay and get a different canister or should I see what yall have to say Cause Im frustrated!!!!!