The Marineland Bio-Wheel Penguin Rite-Size C Filter Cartridge mechanically filters water through a pad of double thick poly-fiber, trapping debris and waste particles before the water is chemically filtered through Black Diamond Premium Activated Carbon. This pre-assembled cartridge is made with a patented ribbed backing to ensure even distribution of activated carbon and maximum water-to-carbon contact for crystal clear and clean water. The Bio-Wheel Penguin Rite-Size C Filter Cartridge slides easily into place, providing superior mechanical and chemical filtration and making replacement fast, dry and effortless.
Mechanically filters water through a pad of double thick poly-fiber trapping debris and waste particles before the water is chemically filtered through Black Diamond Premium Activated Carbon
Pre-assembled cartridge is made with a patented ribbed backing to ensure even distribution of activated carbon and maximum water-to-carbon contact for crystal clear and clean water
Double thick poly-fiber traps debris and waste particles and lasts for 2-4 weeks
Slides easily into place, providing superior mechanical and chemical filtration and making replacement fast, dry and effortless
Replace filter cartridge every 2 - 4 weeks. Never clean or replace BIO-Wheel. Discoloration of material is normal and desirable. If excessive buildup occurs, rinse gently with dechlorinated water (room temperature) as needed. Extra media slot is for inserting additional filter cartridge or adding other filtration media.
Install Filter Cartridge(s). Rinse filter cartridges thoroughly and install with blue side facing back of filter box. BIO-Wheel should rest securely in BIO-Wheel Bearings.
Assemble Intake. Attach strainer to extension tube and insert extension tube into mid-level intake strainer. Attach mid-level strainer to intake tube and insert intake tube into impeller housing.
Install and Fill. Install Power filter on back of aquarium frame before adding water to filter box. Fill filter box with water. Replace BIO-Wheel and filter covers. To start your system, just plug in. Adjust intake if desired.
I do not change my filter very often. Can you imagine how much great bacteria is on the surface of these cartridges? Rinse them in tank water gentley,put them back in. Change one side at a time when you do change them. A week apart at least.
Now this is how I have done for 50 years on all my hob filters. By far marineland 400 is my favorite.
I still have four 350's running right now.
Good filters, best price
on Jul 4, 2018
Chewy has the best price on these filters, which are expensive in the local petshops and even online elsewhere. I have several Marineland penguin filters and thanks to Chewy, I can change the filters as needed, rather than trying to make them last a little longer.
Perfect filtration for salt or fresh
on Jan 26, 2018
I have a 40 breeder set up for my tank raised darwin percs and I use these cartridges in my hang on filter system. These work excellent and do not break down like value brands do. I would highly recommend buying from Chewy.com as they have truly THE BEST service anywhere!
what a deal!
on Mar 4, 2018
My husband is so happy! Our 75 gal and 38 gal aquarium both use these cartridges. We go thru them rather quick! Chewy's price for these filter cartridges is incredible! We pay 1/2 of what they are in a pet store for twice the amount!... Thank you sooo much Chewy!! Love them!
on Sep 7, 2018
I am using this filter cartridge in 3 filters and it is super easy to clean.
on Aug 1, 2018
The right product for a great price with timely deliver. Very happy.
on Jun 14, 2018
I use these filters cartridges all the time. We get great water quality and zero carbon dust in the water when you follow the recommended process. It's a great product.
no more cloudy tanks
on Nov 21, 2017
I have tried many filters in my fish tanks,they never do the job properly,so I bought marineland water filters,I can honestly say they filter the water the best,no problems with cloudy tanks anymore.
Great for my tank
on Dec 12, 2017
These fit much better then the other store brand I was getting. They are easy to use and cheaper then what I was using. I'm very happy and recommend these.
My fave filters
on Sep 8, 2018
These are good quality. They don’t tear up. They work great