squint;4036129; said:I think bigger tanks should be looking at something more heavy duty than a myriad of canister filters. One big filter is less work than many small ones. 240 gal is pushing the limits of most canister filters.
My suggestion is to get an Ocean Clear 354, a separate pump, and plumb it with 1" ID hose. It's a small bead filter, something which is popular with ponds, aquaculture, and perhaps even swimming pools. In those "upsize" applications, separate pumps and filters are the norm.
The main benefit is ease of cleaning. You just shut off the pump, flip a few valves, connect a hose, and backwash the media inside the filter while draining the tank. You'll be done in less time than it takes to even crack one canister filter open. You'll never have to open up a filter and clean the media again. You can even backwash the media in between water changes. Exporting the debris before it can decompose into ammonia, nitrite, and nitrates is the best option. Otherwise, filters only hide the debris out of site. It's still in the water column and thus will decompose. Hence the plethora of self-cleaning and backwashable filters for ponds, public aquariums, and other large systems.
do you have an ocean clear 354? Is it only used for mechanical or both mechanical and bio?
I was looking at the ocean clear 380, but the 354 may be a better option.