Can I just use a trickle tower filter instead of a pump? Also I need a little help on what goes where. I know that in the top compartment you put filter floss and in the second you put bioballs/pot scrubbers but what goes in the last compartment that's submerged in the tank/sump? Also can I put a pump that puts water to the trickle tower instead of an overflow and add a returning pump with the same GPH? Also would this method make my aquarium environment suitable for a ray or would i have to sell the Oscar?Changing a filter sock or two is way way easier then cleaning any canister.
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