The Aqueon Filter cartridge eliminates mechanical and chemical debris in your aquarium. Easy-to-replace cartridge contains over 25% more activated carbon than similar filter cartridges.[]More detail ...

The filter cartridge works like a waste bin trapping dirt once full it should be thrown away and replaced with a new one. This should be done every 1-2 months. A partial water change of 30% should be carried out at the same time. Contents: Replacement filter cartridge Algae cleaning cloth Sachet of water preparation chemicals.

• The filter cartridge works like a waste bin trapping dirt once full it should be thrown away and replaced with a new one.

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The Aqueon Power Filter cartridge eliminates mechanical and chemical debris in your aquarium. Easy-to-replace cartridge contains over 25% more activated carbon then similar filter cartridges.

• Ready-to-use preassembled filter cartridges install in seconds


• Helps create crystal-clear healthy water


• Patented dual-sided replaceable dense-floss cartridges filter out more particles and debris


• Cartridges contain more activated carbon to remove toxic impurities odors and discoloration


• For best results replace cartridge every 4-6 weeks

More detail ...

The Aqueon Power Filter cartridge eliminates mechanical and chemical debris in your aquarium. Easy-to-replace cartridge contains over 25% more activated carbon then similar filter cartridges.

• Ready-to-use preassembled filter cartridges install in seconds


• Helps create crystal-clear healthy water


• Helps create crystal-clear healthy water # # Patented dual-sided replaceable dense-floss cartridges filter out more particles and debris


• Cartridges contain more activated carbon to remove toxic impurities odors and discolorationCartridges contain more activated carbon to remove toxic impurities odors and discoloration


• For best results replace cartridge every 4-6 weeks

More detail ...

The Aqueon Power Filter cartridge eliminates mechanical and chemical debris in your aquarium. Easy-to-replace cartridge contains over 25% more activated carbon then similar filter cartridges.

• Ready-to-use preassembled filter cartridges install in seconds


• Helps create crystal-clear healthy water


• Patented dual-sided replaceable dense-floss cartridges filter out more particles and debris


• Cartridges contain more activated carbon to remove toxic impurities odors and discoloration


• For best results replace cartridge every 4-6 weeks

More detail ...

Great - but a warning

The Penguin Bio-wheel pumps are great: quiet effective and long-lasting. (I have a 170 filter in a 39 gallon tank.) These size C filters are widely available but the Amazon price is much lower than at my not-so-nearby pet store.



A word of warning. The day after changing my filter three months ago fish started dying. Next morning my 6" long Plecostomus was dead. Then three Clown Loaches each about 5 " long. Within a week I had lost 18 of my 20 fish. Yet there was no sign of disease.



A water test and much internet searching finally pointed out what I had done wrong. I had neglected my tank for a few weeks. In a rush to catch up I siphoned out about 30 percent of the water (more than usual) did a "better" than usual job of siphoning up detritus from the gravel. Then - my biggest mistake - I replaced the Penguin filter too! The result is the water chemistry changed too quickly. The Nitrates spiked to a deadly level. My tank healthy for more than two years needed to be started over. Took two months and many water changes before I could safely add new fish.



I visited perhaps a dozen "fish forums" and only one had a comment saying "don't change filters when you do a water change.' The Penguin filters and the box they come in carry no warnings. What I (and you) should do is simple: space your water changes and filter changes a week or two apart.



Now knowing how important the "aged" filter is (especially in a tank like mine with no under gravel filter) I've started this habit: there's just enough space to get a second filter flat against the old filter. After a couple of weeks I remove the older filter and put the newer one - by now doing some biological filtering - in its place. That way the tank is never depending on only a new filter. For larger tanks (say 55 gal and up) the 330 or 350 Penguin pump holds two filters side by side so just change one filter at a time.



Hope this helps you avoid the disaster that hit my tankMore detail ...

Easy Baby

Have to disagree with the other reviewer here ... I purchased a Baby biOrb recently for my new Betta after having my first betta living in an airless bowl for a couple years. I simply got tired of cleaning a stinky bowl every week. As a result I went shoppin for a new tank with a bubbler and filter system and found the Baby biOrb.



While I agree that the maintence costs are significant at $132/ year (if you need to change a filter every 4 weeks) the costs balance with ease of maintenance. Personally my experience with cleaning the Baby biOrb was a snap with the optional suction hose. Took me fifteen minutes to clean the tank drain the grimey water and add new water. Couldn't have been much easier. And I am not sure how anyone could have a problem swapping filter cartriges unless they have motor skills issues.



I also built a noise dampening box for the air pump - my only real complaint is that the "whisper quiet" pump sounds like a mini jackhammer after about five minutes.



Great product and looks awesome.More detail ...

Aqueon Replacement Filters

They are great and they came right on time.Actually they camebefore they were duebut I was using my last filter when they came.Thank you!More detail ...