How often should my filter be cleaned?

[leightond]

I have a fluval external filter but dont how often it needs cleanning for my reef aquarium.

My filter is cleanned once a month in my freshwater tank but not shore about reef tanks. Ive looked on the internet but cant find my answer anywhere.

 

[fort384]

Moved to Saltwater & Reef - Getting Started. You should get more responses here. Forum Admin and Tech Support are for questions related to the software and the site itself.