Penguin BIO-Wheel Power Filters offer complete aquarium 3-stage filtration, to keep your aquarium clear, clean and healthy. Penguin Bio-Wheel aquarium filter provides ample surface area for nitrifying bacteria to prosper for effective and reliable biological filtration. The powerful, adjustable intake strainer draws water from mid-level for targeted aquarium water circulation. All models use easy to replace Rite-Size filter media cartridges for chemical and mechanical filtration. One of the best aquarium power filters for both freshwater and saltwater aquarium filtration..
I had two of the 75g ones for a 55g tank and eventually 3 of the 4 wheels stopped spinning. The other wheel would periodically stop and i would have to start spinning it manually again. They worked great for a few months
BIO WHEEL QUIT WORKING 11/12/2016
I purchased the Penguin 200 TWICE. Both times, the biowheel quit working. I took them apart and cleaned them...nothing. After the biowheel quit turning, it didn't even filter that well. I won't purchase it again.
penquin 350 Bio-Wheel 7/31/2014
I really recommend this filter, they are not that loud and have a good flow.
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