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Tetra Whisper Power Filter

3.9 out of 5 stars 836 customer reviews

Price: $28.25 & FREE Shipping on orders over $49. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Up to 60-Gallons
  • Designed for Use in Smaller Aquariums Up to 60-Gallon, Uses Large Whisper Bio-Bag Cartridges
  • Uses Large Whisper Bio-Bag Cartridges
  • Three filters in one for cleaner water and healthier fish
  • Please refer the Troubleshooting steps below
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Tetra Color Fusion Aquarium
$28.25 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Tetra 25775 Whisper Power Filter 60, up to 60-Gallon
  • +
  • Tetra 26164 Whisper Bio-Bag Cartridge, Unassembled, Large, 12-Pack
Total price: $42.15
Buy the selected items together


Product Description

Size: Up to 60-Gallons


Troubleshooting Steps

If the filter doesn’t start, lift the Wonder Tube out of the filter and remove the Magnet Impeller
Assembly. Use tweezers to remove any stringy or hair-like material that may have twisted around the
shaft. Hold the assembly by its endcaps and try to spin the magnet. If the magnet does not spin freely,
rinse under a jet of tap water to “unlock” it. Now hold the magnet and try to spin the impeller one turn in
either direction. If the impeller doesn’t spin freely, rinse under a jet of tap water to “unlock” it. If rinsing
doesn’t free up the magnet or impeller, replace the assembly.

If you’ve replaced the assembly and the filter still won’t start, it is possible the carbon or aquarium
gravel may have lodged at the bottom of the Energizer Well. Slide the Wonder Tube up and down in the
filter box (with water still in it). If this doesn’t work, unplug the filter and empty it in your sink. Insert a
drinking straw–not a metal instrament–into the Energizer Well and try to break up any sediment. Rinse
the Energizer Well and re-assemble the filter.

To determine if the Energizer is functioning, plug it into an electric outlet and hold the Magnet Impeller
Assembly against its outside wall. If you feel a magnetic attraction, the Energizer is functional. If not,
replace the Energizer.

Product Details

Size: Up to 60-Gallons
Instruction Manual [PDF]
  • Product Dimensions: 5.8 x 13.6 x 7.9 inches ; 3 pounds
  • Shipping Weight: 2.9 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B0002DHY6S
  • Item model number: 25775
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (836 customer reviews)
  • Amazon Best Sellers Rank: #4,610 in Pet Supplies (See Top 100 in Pet Supplies)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: Up to 60-Gallons
I have a 65 gallon tank which replaced a 20 I had owned for 3 years. I had the appropriate Whisper filter on that one so I got the larger version for this one. There is no such thing as a silent filter (unless it is in another room) but the whisper does a good job of keep noise to a minimu. If you have your water level right, you do not hear the waterfall effect that others have addressed.
Also, I replaced the additional media in the filter with a better mesh to control phosphates and (hopefully) cut down on algae, and there was plenty of room for this material along with the bags and charcoal.
I had looked at the more expensive cylinder filters but after assessing the cleaning problems, the leaking problems and the overall work involved, I chose to stick with the Whisper and spend my $$ on new fish and decorations!
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Size: Up to 60-Gallons Verified Purchase
This filter is great!! I just got it set up and running on my 60 gallon tank. I was worried it would be loud but those poor reviews turned out to be just like any other aquarium advice I see on the internet.. This is really a whisper, the filter is heavenly quiet. I am one of those people that will be driven nuts by a clicking powerhead or a vibration against the side of the tank. This thing is silent!!! If it sounds like a waterfall, its because the water is falling in.. RAISE YOUR WATER LEVEL...and also... 2+2=4
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Size: Up to 30-Gallons Verified Purchase
I think I have figured out why there are a mix of opinions about the noise level. My guess is that there is a quality issue and some people get better working parts then others. Mine CAN actually be very quiet but it is short live, because most of the time it sounds like a loud buzzing, rubbing, or rattle. I tried to shave the fins on the part that spins with a razor thinking they may be rubbing against the sides, no luck. I've pulled out the tube and put it back in countless times. I pushed it down hard, pulled it out some, but there is no sweet spot on mine. I will add a video soon to show how noisy it runs. It also came shipped with a nice crack in the top cover right out of the box. I already trashed the box and shaved the fins with a razor, but I still may try to return it. This is way too loud. The filter does do a great job, but quiet it is not.

EDIT (MOD FIX):
OK, I figured out why this is so loud. The part that goes into the motor (fins attached to a magnet) is two connected pieces. However, this makes the spinning part with fans vibrate against the magnetic piece below it. So, I dried it and took a small piece of scotch tape and tightly wrapped it around the top of the magnet and the bottom of the fin. This made it act as one solid piece. I put it back in the motor and it is now super quiet. Problem solved for next to nothing.
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Size: Up to 60-Gallons Verified Purchase
I've been using Whisper PFs for all my aquariums for over 20yrs and have never been disappointed by them. As with any filtration, you should always get a filter that's rated higher than what you need -- for example, if you have a 60 gallon aquarium, the filter's MINIMUM GPH (gallons per hour) rating should be no less than 80 GPH -- because all filters lose filtering capacity over time as media gets dirty and/or loses effectiveness. Aquariums housing particularly messy and/or big fish need filters that can turn the water volume over at least 3x per hour -- for example, a 60 gallon Goldfish aquarium needs a filter capable of no less than 180 GPH. It's for this reason that people have issues with filters not keep their aquariums clean.

Whisper PFs are exceptional! Very well constructed and most are very quiet. The Whisper 60 is the biggest model and is also the noisiest of the bunch. They're not insufferable, though, but you can hear them working compared to their smaller cousins. Usually the noise is caused by impeller assemblies not being seated properly and/or air being trapped in the impeller compartment. Should ALWAYS add the impeller assembly into the motor housing after adding water to that compartment so air doesn't get trapped inside. The cover tends to rattled from the vibration generated by the motor, but putting a rock or something like that on top of it eliminates that issue.

The Whisper 60 has a 2 compartment system which makes these filters extremely versatile! Using the filter pouches, you can add any media you want. I always keep one side stuffed with blue bonded media and sponge type media for beneficial bacterial to take on biological filtration which keeps the water crystal clear even with no chemical/mechanical media in use.
Read more ›
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Size: Up to 20-Gallons Verified Purchase
(PROPELLER NOISE FIX!)

Alright so I purchased two of these filters for my tank to replace the older models (but still quite similar) that I had. First off I'd like to clarify that I also had issues with it being noisy, at first; however I was able to find THE FIX!

The problem I had was very much similar to the other reviews, I noticed that I had not properly seated the propeller tube assembly in the filter housing correctly. If you look closely where the propeller tube assembly sits on the housing you will see two small notches. MAKE SURE you align the notches up correctly and more importantly MAKE SURE you put enough downwards pressure to properly seat the tube. It can take quite a bit of force and is a bit scary because I feared I would break the plastic tubing.

Once you feel the propeller tube assembly snap into place all the way you will quickly realize why it was making so much noise.

(The photo attached shows where the notches are at, and where you will need to apply the stern pressure in order to get it to seat properly)
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