penguin/emperor filters are garbage no matter what sized tank you have. lol. the aquaclear system is way better. its like a HOB canister. idk why yours is cloudy. you must not have set it up right.

1 more vote for we/dry sump or Fx5. alternatively, id suggesto 2 AC110 HOB filters. but you can do a diy sump for pretty cheap

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why buy, when you can DIY