Tetra Whisper Aquarium Power Filter, slide 1 of 1

Tetra Whisper Aquarium Power Filter

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Ensure your Tetra Whisper Aquarium has the quiet, reliable filtration it needs with the Whisper Power Filter. This easy-to-use system introduces your tank to three stages of filtration—mechanical, chemical and biological—to completely eliminate toxic ammonia and nitrites for a crystal clear aquarium. Its water flow was scientifically engineered to create a continuous flushing action, which can help prevent debris buildup and keep your tank cleaner than ever.

Key Benefits
  • For a crystal clear aquarium, this filter completely eliminates toxic ammonia and nitrites.
  • Economical and easy to use, even for beginning aquarists.
  • Provides efficient three-stage filtration—mechanical, chemical and biological.
  • The scientifically engineered water flow provides a continuous flushing action to prevent debris buildup.
  • Optimum outflow maximizes water agitation and oxygenation.

Cartridge not included.

Keep your system running smoothly Tetra filter.

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  • Item Number
  • Dimensions
    7.56 x 7.38 x 4.44 inches
  • Aquarium Type
    Freshwater, Saltwater
  • Fish Type
    Tropical Freshwater, Betta, Cichlid, Goldfish, Marine Fish

Changing the Bio-Bag®: When water flows excessively from the Wonder Tube Chamber into the aquarium, it is time to change the Bio-Bag®. The Bio-Bag® should be changed once per month to prevent backflow and avoid filtration problems resulting from a clogged Bio-Bag®.

Using a ready-to-use, assembled Bio-Bag®

  • Remove filter box cover.
  • Lift Bio-Bag® and allow excess water to drain into filter box.
  • Dispose in garbage can.
  • Rinse new Bio-Bag®, insert into filter, replace filter cover.

Using an unassembled Bio-Bag®

  • Remove Bio-Bag® from filter, allowing excess water to drain into filter box.
  • Remove clip from frame, fold up frame flap, and remove floss bag from frame. Place new floss bag over frame.
  • Add one packet of Ultra-activated® carbon.
  • Fold flaps of Aerobic Frame® over filter bag and replace clip.
  • Rinse Bio-Bag®, insert into filter, replace filter cover.

Maintaining the Energizer: Caution: Only remove Energizer when absolutely necessary.

  • Unplug power cord, empty filter box, and place it upside down on a flat surface.
  • Grasp Energizer with one hand and filter box with the other. Gently turn Energizer counter-clockwise until its sidewall is parallel to the raised line on the bottom of the filter box.
  • Hold Filter Box with one hand and gently pull the Energizer with the other. (If necessary, rock the Energizer back and forth to ease removal.)
  • Clean inside of Energizer Well with a Q-tip Cotton Swab. Do not use a metal instrument of any kind. Before replacing Energizer, wet the “o-ring” with water, or coat its surface with a small amount of non-medicated petroleum jelly.
  • Replace Energizer and fill filter box with water. Check to be sure that Energizer is seated properly and does not leak. (When seated properly, the red o-ring will not be visible.)
  • Re-install filter.

Cleaning The Wonder Tube®:

  • Unplug power cord and remove filter box cover.
  • Lift Wonder Tube® out of filter.
  • Remove Magnet Impeller Assembly.
  • Clean all parts under running water. If needed, use a filter stem spring brush.
  • The Flow Control Knob can be removed to aid in cleaning. Before replacing the knob, wet its “o-ring” with water, or coat the surface of the o-ring with a small amount of non-medicated petroleum jelly.
  • Reinstall the Wonder Tube.
  1. Rinse Bio-Bag® and slide into v-notched slot in aquarium well wall. (Note: Before installing, fill wells with water and check for leaks.)
  2. Remove Bio-Foam® from Aerobic Grid®. Rinse it in cold water, squeezing until it is thoroughly wet. Place the Bio-Foam® back into the Aerobic Grid® and slide it into the filter box next to the Bio-Bag®.
  3. Hang filter tank on rear wall of aquarium.
  4. Assemble the Wonder Tube®. (Note: Not all filters include extension tubes.)
  5. Slide Wonder Tube® into filter box so that the impeller slide all the way into the Energizer Well. If necessary, add or remove extension tubes to position the strainer at least one inch above gravel. (Leave 3 inches above gravel for cichlids and goldfish.)
  6. Set Control Knob at maximum flow by pointing indicator arrow at aquarium wall.
  7. Pour water into the Wonder Tube® Chamber until it overflows into Bio-Bag® Chamber.
  8. Cover the filter and fill your aquarium with water (1/2 inches to 1 1/4 inches from top).
  9. Plug in power cord; the filter should start automatically within 10 to 20 seconds.
  10. If filter does not start, remove cover and slide Wonder Tube® up and down with one or 2 short strokes. Replace cover.
ProductAquarium SizeFilter Cartridge Size
Size 20Up to 20 gallonsLarge
Size 30Up to 30 gallonsLarge
Size 40Up to 40 gallonsLarge
Size 60Up to 60 gallonsLarge

2-Year Limited Warranty.

Rating: 3.8 of 5 stars 54 Reviews 54 Reviews 3.8 out of 5 Stars

72% Recommend

72% of reviewersrecommend this product

Rating: 3.8 of 5 stars 3.8 / 5

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54 Reviews

Showing 1-10 of 54 Reviews

  • 2 out of 5 stars

    Disappointing: this Whisper doesn’t!

    By on

    Purchased this Tetra Whisper 60 to replace a 10+-year old Whisper 60 unit that was starting to make a rattling sound; at least it could become a good backup unit in a pinch. The new unit makes a rumbling sound audible 30 feet away, and no troubleshooting options made a difference. Seems obvious something is out of balance in the unit, hopefully it’s coincidental and not a design flaw. The old unit is working well for the time being. Need to return for a replacement and see if another new unit will actually “whisper”!

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  • 5 out of 5 stars

    Tetra power filter

    By on

    I have used these for years. Highly recommend them. Do a great job.Never had a problem. they are reasonably priced. Tried a couple of the higher end ones. Spent way more money and results were not as good.

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  • 4 out of 5 stars

    Works Great

    By on

    I have used these filters for many years. Clean more fish tanks then I'd like to think about. I have had fish for 30 years I'm not sure why they call them Whisper Filters because they're really not that quiet but overall I really like how they perform and they usually last a long time for me. When I had a fish tank cleaning business I used these a lot. So again not as quiet as you would think by the name but overall good filter. I would recommend them

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  • 1 out of 5 stars

    Very Very Noisy

    By on

    I have owned many Whisper filters...this one is by far the worst...Noisy right out of the box. I had to stop using it. Impeller makes a lot of noise.

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  • 5 out of 5 stars


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    I have aquatic turtles and for the longest I was using cheap and bad filters. For aquatic turtles you should have a filter rated 2-3 times the size of their enclosure and I have a 40 gal breeder. It's dual sided and comes with 2 filter cartridges for immediate startup. Also the filter cartridge replacements are cheap and you can adjust the water flow during feeding to have less stress on the filter. I adjust it every time I feed and would 100% recommend.

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  • 4 out of 5 stars

    Good Filter

    By on

    It’s a good filter but it is not a silence filter. I can hear it from my upstairs room.

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  • 1 out of 5 stars

    It sounds like it's going to blow up

    By on

    It's seriously so loud. I can hear it at the other end of my house.

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  • 5 out of 5 stars

    Whisper Power Filter 60

    By on

    Great product. Easy set up........................................................................ . ..... .......................................

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  • 4 out of 5 stars

    good a little loud though

    By on

    It works good, but it’s loud, but the loudness is bearable. I’ve certainly seen filters that are quieter, but like this because of the gallons per hour.

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  • 5 out of 5 stars

    The best filter

    By on

    I had bought another brand of filter system and it only lasted a few weeks then melted down where the impeller is. This input runs free and quite with no issues. Thanks for carrying quality products.

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