Switching out the canister

[Nano]

In my AC70 I cut the filter foam in half lenthwise, so I can use the other half at a later date, then put the carbon in and then instead of biomax I use LR. same idea I suppose, and this allows me to rinse the foam often, while still trapping detritus.

[claymax]

you could always use an AC as a fuge too the mod is pretty easy i think