I open my canisters and dump the brown gunk and water out(two marine land c360s), but I don't rinse the media since I don't use floss, only bio balls and rings. I do this once a month
I never thought about it till last night when I wasn't cleaning my cannisters during water changes. I use Rid X also. Maybe everyone should use it that has to clean cannister filters all the time.
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Don't kid me to use Rid to clean canister. Rid is made up of enzymes to digest household waste in a septic system, which is high in fat, grease and urea ceontents. You don't add chemicals to an aquarium system without knowing what their effects on fish.
This is one reason why i dont ask some questions. It always has to be a fight. O and am kind new but have had fish since i was 6. But started on my own at 12.