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Hey guys I have an school project where I need to ask people six questions I came up with about aquarium filters and I figured Id ask them here. Thanks for you help if you do answer them. Do the looks of Hang on Back, Canister filters, or sponge filters bother you, if so why? What function would you want to add to Hang on back or Canister filters? How often and why do you clean your hang on Back or Canister filter? How do you clean your Canister or Hang on Back filter? (is their something specific that bothers you about this process) What types of filter media do you put in your Hang on Back or canister filter, why? In what ways do you modify your Hang on Back or Canister Filter?