What is the best aquarium filter for delicate marine animals?
The best filtration for marine aquariums is a combination of live rock (1-2 pounds per gallon), strong water flow, a sump/refugium with a deep sand bed (4 inches or more), and a good protein skimmer. It’s commonly referred to as the Berlin Method, and employees natural filters like live rock and marine plants (in the refugium). Not only is it more effective than canister, wet/dry, and power filters, but it actually requires less maintenance. The only mechanical filtration involved is the protein skimmer, which is one piece of equipment you don’t want to skimp on.
