Go to the fish store/Box store whichever you wish, Go buy a sponge. Either an aquaclear or TETRAfauna makes a great one for turtles (Petsmart has these). Slip it over the filter intake, it will reduce the flow slightly, but not detrimentally. It will protect your fish, and act as a pre-filter. Merely rinse in tank water during a water change to clean.
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Four Tanks
55 Gallon - Planted Display Tank
50 Gallon Nursery
20 Gallon - High-Light Planted Breeder
20 L Gallon - Newt Paludarium
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