What filter do you use on your tanks? 4
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Canister (3) 75%
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Internal (0) 0%
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Hang On Back (HOB) (1) 25%
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Sponge (0) 0%
What type of filter do you use on your tanks and why? Do you find one easier to clean than the others, or do you use different ones based on the tank size and what the fish contains?