Tetra Whisper Aquarium Power Filter, 5-10 gal

$19.47 (-20%) Chewy Price
$24.39 List Price
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About This Item

Details

  • Provides quiet, convenient, reliable filtration designed with simplicity and convenience in mind
  • This intuitive, filtration system is simple to set up—ready to go right out of the box with no priming required
  • Provides three-stage filtration, including mechanical, chemical and biological
  • The scientifically engineered water flow provides continuous flushing action to prevent debris buildup
  • Provides optimum outflow maximizes water agitation and oxygenation

Instructions

Learn More About Tetra From Our Team of Experts

Questions & Answers

17 Customer Questions


Anyone else have a problem with it backing up? After a few days, the water ends up overflowing and going back out the way it is sucked up-leaving it unfiltered.

Answer by ChewyMar 28, 2018
There are a few ways to troubleshoot your filter. Unplug your Tetra Whisper filter from the outlet and carefully pull it free of the aquarium. Examine the intake strainer and make sure it is not broken or damaged. Carefully remove the intake strainer from the intake tube. Check the tube for debris and clear anything you find. Pour the water out of the back of the filter. Pull out the old filter and replace it with a fresh new one, then carefully place the filter back on your aquarium. Fill the back of the filter up with water that is roughly the same temperature as the water in the tank. After the back reservoir is filled to the top, plug the filter in and listen for the motor. After a couple seconds the motor should come on and you should see water begin to flow. If water is not flowing the motor may be damaged.

Is this a gentle water flow? I want to use it for a betta tank, but I know they don't like hard flowing water.

Answer by ChewyNov 23, 2019
This filter would be suitable for a betta in a 10-15 gallon tank, however, pet parents of betta fish that have used this tank in smaller gallon set-ups have reported too much movement in the water. Tetra recommends that fish parents with smaller betta set-ups opt for the Tetra Whisper 2 -10 Gallon Depth Power Filter instead.

About how loud is this filter when in the tank?

Answer by ChewyAug 06, 2019
The Tetra Whisper Power Filter is made with silence in mind. Pet parents have reported this filter to be as quiet as a running ceiling fan.

how often should you replace filter media ?

Answer by ChewyMay 22, 2019
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.

3.2
Rated 3.2 out of 5 stars
133 Ratings

100 Customer Reviews



Rated 1 out of 5 stars
By Aimee on Jan 12, 2026

Do not recommend

The filter came in the Tetra 10 Gallon LED kit that I purchased. Not only was it extremely loud, but the water was overflowing out the side of the filter with the

The filter came in the Tetra 10 Gallon LED kit that I purchased. Not only was it extremely loud, but the water was overflowing out the side of the filter with the intake tube when brand new cartridges were installed. This is a defective design and far inferior to other Tetra Whisper filters from the past. I would not recommend it. On top of that, Tetra customer service would not refund the price of the filter with their satisfaction guarantee because it was part of a kit.


Rated 1 out of 5 stars
By Casey on Aug 27, 2025

Wanted something small

Leaking in the first 24 hours of use. Have had so many returns/issues ordering from chewy lately I didn’t bother to reach out, but since you asked me for a review

Leaking in the first 24 hours of use. Have had so many returns/issues ordering from chewy lately I didn’t bother to reach out, but since you asked me for a review. Box was smashed when I got it, possible that is how it became cracked but I have yet to find the hairline issue. Sadly this type of thing is becoming more prevalent and will result in me going to local stores to buy from here on out.


Rated 5 out of 5 stars
By Kathleen on Jan 7, 2026

Tetra brand

Easy to use replacement filers

Easy to use replacement filers


Rated 5 out of 5 stars
By Fergie95 on Aug 27, 2025

quality

Bow Wow, By Far This is the best filter Brand, The only one I trust

Bow Wow, By Far This is the best filter Brand, The only one I trust


Rated 1 out of 5 stars
By Heidi on Jan 16, 2025

NOISY!!!

Unfortunately I ordered this awhile ago and didn't use it until now!! It is the noisiest annoying filter I've ever had. I will attempt to return!!!

Unfortunately I ordered this awhile ago and didn't use it until now!! It is the noisiest annoying filter I've ever had. I will attempt to return!!!


Rated 2 out of 5 stars
By RaChelle on Dec 17, 2024

Very loud!

I have several tanks ranging from 50 gallons down to a one gallon and this pump is louder than all the others combined! Definitely not a “whisper”. I wish I would

I have several tanks ranging from 50 gallons down to a one gallon and this pump is louder than all the others combined! Definitely not a “whisper”. I wish I would have returned it.


Rated 1 out of 5 stars
By Michele on May 5, 2025

Too Loud

I like this brand but this one was too loud.

I like this brand but this one was too loud.


Rated 5 out of 5 stars
By Gunther on May 7, 2025

Its small and just wright for my 5-gallon aquarium

Its easy to setup and change filter.

Its easy to setup and change filter.


Rated 3 out of 5 stars
By Michael on Jun 22, 2024

Too powerful, too loud

This filter has NO flow adjustment: The flow is extremely powerful, way too much for my fish to handle. It's also extremely loud.

This filter has NO flow adjustment: The flow is extremely powerful, way too much for my fish to handle. It's also extremely loud.


Rated 2 out of 5 stars
By emje on Feb 2, 2024

not good for a 5 gallon tank

the description said it would work for a 5 gallon tank, and the instructions include a way to adjust the filter, but there was no way to adjust the filter & the

the description said it would work for a 5 gallon tank, and the instructions include a way to adjust the filter, but there was no way to adjust the filter & the pull was so strong that my little goldfish could not swim around in the tank :(