The air stone at the base of the aquarium breaks up the flow of air into a mass of bubbles.

• Replacing the air stone every few months


• Small and compact


• Easy to replace

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Our filter cartridges meet the absolute highest standards of water purification performance and operational ease. Each pre-assembled cartridge slides easily into place providing superior mechanical and chemical filtration and making replacement fast dry and effortless. The cartridge mechanically filters water through a pad of couble thick poly-fiber. Debris and waste particles are trapped and water is chemically filtered through Marineland's Black Diamond Premium Activated Carbon. Inside the cartridge a patented ribbed backing ensures the even distribution of activated carbon to deliver maximum water-to-carbon contact resulting in crystal clear crystal clean water.

• There's a Rite-Size cartridge for every Penguin Emperor and millennium power filter


• Is designed specifically for horizontal placement in our extensive selection of Eclipse systems


• Color-coded packaging ensures fool-proof cartridge selection


• Delivers crystal clear crystal clean water


• Please read all label information on delivery

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The cleaner pump makes partial water changes easy and effective with minimum effort. A couple of squeezes on the hand pump is all that is needed to get the pump working. While emptying water from the aquarium the cleaner pump will also suck up dirt and debris from the bottom

• The simple and easy way to change the water in your biOrb or biUbe.


• The cleaner pump can also be used to pump water back into the aquarium eliminating the need to struggle with heavy buckets of water.

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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

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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


• 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

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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 ...