Aquarium Pre-filter sponge part 3 the prefect size and pore size

Part two
One of the large ones is more course than the other. The coursest one is still adequate for filtering, small fish and small shrimp but there’s a middle grade poor size large sponge in the video as well which I think is the perfect balance between poor sizes so that you can leave the sponge in for months at a time without having to clean or worry about sucking up your fish
Lager pore size
EKUEY 5.9″ Big Prefilter Sponge... www.amazon.com...
Medium pore size
Qzbhct 5.9″ Big Prefilter Sponge... www.amazon.com...
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Qzbhct 5.9″ Big Prefilter Sponge Foam Replacement Filtration Kit for Pond Aquarium Fish Tank, 6 Pack