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Tetra Whisper EX 30 Filter For 20 To 30 Gallon aquariums, Silent Multi-Stage Filtration (26311), Blacks & Grays

4.2 4.2 out of 5 stars 11,688 ratings

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20-30 Gallon

Purchase options and add-ons

  • WHISPER QUIET The Tetra Whisper EX Power Filter provides silent multi-stage filtration for clear clean water
  • FAST SETUP Sets up easily right out of the box – no priming required
  • CONTINUOUS FLOW Moves water continuously to prevent debris buildup
  • NO-MESS FILTER CARTRIDGE CHANGES Design minimizes dripping to make cartridge changes easy
  • SIZE This filter fits 20 to 30 gallon aquariums
  • Age Range Description: All Ranges

Customer ratings by feature

Suction power
3.8 3.8
Easy to clean
3.8 3.8
Sheerness
3.7 3.7
Noise level
3.5 3.5

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From the manufacturer

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Multi-stage filtration system!

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Filter cartridge carrier

The Tetra Whisper Power Filter comes with a filter cartridge carrier which keeps your hands clean and eliminates any unwanted drips.

Success Made Easy

We've made it simple to maintain a beautiful clear tank without the stress. With Tetra's 30-30-30 program and our handpicked supplies, taking care of your fish is as soothing as enjoying them.

Multi-stage filtration with bio-scrubber

Unlike other filters, the Whisper EX directs water through multiple densities of floss to remove particles. The carbon inside eliminates odors, discoloration, and impurities. The Bio-Scrubber removes ammonia and nitrites that are toxic to your fish.

Great value!

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Maximum oxygenation

The Tetra Whisper EX filter is designed to move your aquarium’s water continuously. The outflow optimizes water oxygenation while the motor operates quietly.

Can be used in turtle tanks

The Tetra Whisper EX filter can be used in turtle tanks. The water level must stay above the minimum water level line at all times, which means it needs to be within 3-4 inches of the top of the tank.

Installation Instructions

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x

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Step 1

Remove all packaging and attach strainer (and extension tubes, if necessary) so that strainer will be no closer than 2" to aquarium gravel once the system is hanging on aquarium frame.

Step 2

Hang system on aquarium frame. Be sure aquarium water is at or above the minimum water level indicated on system's motor assembly.

Step 3

Once system is properly in place, plug filtration system into outlet being sure to average a drip loop with the power cord.

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Tetra Whisper Power Filter EX20 Tetra Whisper Power Filter EX30 Tetra Whisper Power Filter EX45 Tetra Whisper Power Filter EX70
Customer Reviews
4.2 out of 5 stars
11,688
4.2 out of 5 stars
11,688
4.2 out of 5 stars
11,688
4.2 out of 5 stars
11,688
Bio-Bag Filter Size Medium Cartridge Large Cartridge Large Cartridge Large Cartridge
Aquarium Size Up to 20 Gallons Up to 30 Gallons Up to 45 Gallons Up to 70 Gallons
Certified Flow Rate (gph/lph) 110/416 160/605 240/908 340/1287

Looking for specific info?

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6.19 x 7.25 x 9.69 inches; 1 Pounds
  • Item model number ‏ : ‎ 26311
  • Date First Available ‏ : ‎ August 1, 2004
  • Manufacturer ‏ : ‎ Tetra
  • ASIN ‏ : ‎ B001CD6C0Q
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.2 4.2 out of 5 stars 11,688 ratings

Product Description

For 50 years, fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. Tetra Whisper EX30 Power Filter is the intuitive filtration system. Every feature of the Whisper EX has been designed with simplicity and convenience in mind. This is truly the intuitive filtration system. Outflow maximizes water agitation and oxygenation. Whisper EX Filtration Systems use Tetra EX Carbon Filters. This filter is ready to go right out of the box with no priming required. Continuous flushing action prevents debris buildup with scientifically engineered water flow. The Whisper EX70 Power Filter is great for 20-30 gallon aquariums. Use large cartridges to keep your power filter working properly. Allow Whisper Multi stage power filtration to keep your aquarium clean and clear.

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Tetra Whisper EX 30 Filter For 20 To 30 Gallon aquariums, Silent Multi-Stage Filtration (26311), Blacks & Grays
Tetra Whisper EX 30 Filter For 20 To 30 Gallon aquariums, Silent Multi-Stage Filtration (26311), Blacks & Grays
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Price$26.42$37.99-32% $27.84
List:$40.99
-5% $19.99
Typical:$20.99
$5.60-24% $31.95
List:$41.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to clean
3.8
4.0
4.1
3.7
3.8
4.1
Suction power
3.8
4.1
4.1
4.7
4.1
Noise level
3.5
4.4
3.5
5.0
3.4
Sheerness
3.7
4.0
3.7
3.4
Value for money
3.5
3.9
3.9
3.9
Sold By
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Monster Pets

Customer reviews

4.2 out of 5 stars
4.2 out of 5
11,688 global ratings

Customers say

Customers like the clarity of the water after using the filter. They say it keeps their aquarium crystal clear. They also appreciate the ease of assembly, ease of cleaning, and filter. However, some customers disagree on quality, value, noise, and flow.

AI-generated from the text of customer reviews

303 customers mention268 positive35 negative

Customers find the pet supplies easy to clean. They mention that it really keeps their tank clean, and cleaning these things is ridiculously easy. They say that it's very efficient at cleaning water, and that the extra scrubbing filter has kept the algae under control. Customers also say that the propeller is easy to remove and clean, while the suction power is great and does not let any debris pass by the intake.

"...This was a huge game changer! My tank is clean and I’ve had it for a couple months now, less full tank water changes needed and it’s very quiet...." Read more

"...Bottom piece continually falls off in tank. Easy to clean. Filter bags cheaply made and rip apart after a couple of cleaning." Read more

"...It was easy to install and the water looks great. suction seems good...." Read more

"...It really keeps my tank clean!..." Read more

288 customers mention273 positive15 negative

Customers have good things to say about the filter. For example, they say it's a great product, it does a good job with both mechanical and biological filtering, and it'll last for a long time. Customers are also impresseded with the power and ease of use. Overall, customers are happy with their purchase and recommend it to others.

"...The removable filters are nice to have, I reuse mine multiple times by rinsing it out in the water removed during a water change...." Read more

"This pump appears to be well made, had great filtering power and is easy to change. Filters are a bit pricey...." Read more

"...Great product otherwise. Tetra has always been a great brand for filters." Read more

"...THREE: Upside: You have to options for filter cartridges...." Read more

190 customers mention154 positive36 negative

Customers like how easy it is to set up the filter. They say it comes almost completely set up, and is easy to put together and take apart. Customers appreciate that no priming is needed to start the filter, and it is easy for them to operate.

"...And by snug I mean, it fits like a glove, no forcing it on or anything, fits right down as it should, but has no play...." Read more

"...It was easy to install and the water looks great. suction seems good...." Read more

"...It was mostly assembled, just had to attach the intake tube. Its quiet and really moves the water...." Read more

"Very simple to put together and get running...." Read more

115 customers mention94 positive21 negative

Customers like the clarity of the water in their pet supplies tank. They say that the filter works great, and the water comes out sparkling clear. Some customers also mention that the tank is crystal clear in 7 minutes.

"...You can also see the water is crystal clear, my water is never any worse then it is in the video, even right before a bi-monthly water change...." Read more

"...Water is always clear and they aren’t too loud. I’ve had them for a year now and they’re still kicking...." Read more

"Great deal and the tank is clear" Read more

"...I must admit that it does keep my axolotl tank crystal clear though." Read more

1,421 customers mention656 positive765 negative

Customers are mixed about the quality of the filter. Some mention that it works good, while others say that it stopped working and has died fairly quickly. The top of those holders seems to come apart, making it difficult to clean.

"...no forcing it on or anything, fits right down as it should, but has no play. Like it was machined to fit (On my tank anyhow)...." Read more

"...I've been using this filter for about 9 months and I'm happy with its performance...." Read more

"...One critique I have is that the filter cage/holder isn’t very sturdy, I wish it would snap together so it was easier to put back in...." Read more

"This pump appears to be well made, had great filtering power and is easy to change. Filters are a bit pricey...." Read more

963 customers mention502 positive461 negative

Customers are mixed about the noise of the pet supplies. Some mention it's VERY quiet, while others say that the noise is louder than expected. They also mention that the filter is so loud with water splashing that their desktop microphone is damaged.

"...These truly are whispers, if yours isn't, talk to someone about it and get it replaced, you have a defective unit...." Read more

"...Sounds awful running dry, though.The plastic is a little thin, but that's been more or less okay...." Read more

"...(if you know gold fish tanks, a strong filter is needed) and it is VERY quiet." Read more

"...Now the OVERWHELMING negatives ..... this thing makes the level of noise I associate with an electric grinder or an industrial pump...." Read more

313 customers mention210 positive103 negative

Customers are mixed about the value of the pet supplies. Some mention that it's very inexpensive and the replacement filters are reasonable price. That said, opinions are mixed on the value. Some customers say that it saves them on noise, money on swapping filter out weekly, and water waste. Others however, say that the price of the filters is nuts and hard to buy in store.

"Reasonably priced filter that work well. Bottom piece continually falls off in tank. Easy to clean...." Read more

"...Its quiet and really moves the water. The price was reasonable and it was delivered fast." Read more

"...Filters are a bit pricey. The main problem is that it definitely isn't quiet...." Read more

"...No problems yet bought a back up as well. Really good filter and good buy thanks!" Read more

210 customers mention92 positive118 negative

Customers are mixed about the flow of the pet supplies. Some mention that it's amazing, moves water better, and circulates water more powerfully than their last filter. However, others say that the pump ran but there was no water flow.

"...Sometimes the motor doesn't want to suck up water if I unplug it for a major water change, but I just give it a minute and it'll chug it right up...." Read more

"...Its quiet and really moves the water. The price was reasonable and it was delivered fast." Read more

"...flow goes 90% to the left side only (facing unit) , the right gets almost no water sent its way at all making second filter pointless...." Read more

"...Then filled it with water. It flows strong and quiet.I really like the filters. They have a clam shape. They are large as well...." Read more

Good product but broken O ring
4 Stars
Good product but broken O ring
I already set this up and went to put the filters in and noticed the O ring was broken right out of the package. Don't feel like taking it apart to return it because it is wet and still running. Great product otherwise. Tetra has always been a great brand for filters.
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Top reviews from the United States

Reviewed in the United States on October 2, 2013
Size: 20-30 GallonVerified Purchase
44 people found this helpful
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Top reviews from other countries

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Amazon Customer
5.0 out of 5 stars Works great
Reviewed in Canada on June 9, 2023
Size: 30-45 GallonsVerified Purchase
JM
5.0 out of 5 stars UN FILTRO EXTERIOR DE CASCADA ECONOMICO Y ROBUSTO EN SU DISEÑO EXCELENTE
Reviewed in Mexico on January 29, 2021
Size: 10-20 GallonsVerified Purchase
Customer image
JM
5.0 out of 5 stars UN FILTRO EXTERIOR DE CASCADA ECONOMICO Y ROBUSTO EN SU DISEÑO EXCELENTE
Reviewed in Mexico on January 29, 2021
Me gustó el precio, su material, el plástico es fuerte, el consumo de energia.
No me gusto, que no tiene regulador de flujo.
Lo compre en 252.40 pesos mexicanos el 14 de nov de 2020, por amazon prime.
En sus características indica erróneamente las médicas de este, ya qué indica: de largo 15.39 cms., ancho 14.12 cms., y profundidad 23.34 cms. Y sus medidas exactas son: largo 14.56 cms, ancho 13.8 cms y profundidad 27 cms desde la salida del agua.
Busque en la página de Amazon y nunca encontré cuanto consume de energia, consume 4.8 watts sin saturar y saturado 5 watts, el largo del cable de alimentación es de 1.70 cms.
No hace mucho ruido si lo limpias siguiendo las instrucciones para sacar la propela del manual.
Me funcionó bien con un acuario de 52 litros pues el flujo no es muy fuerte, dimensiones de mi acuario 50 largo 26 ancho y 40 de alto, todos centímetros.
Lo compré en 252.40 pesos mexicanos y era el más económica en ese momento por amazon Prime de México.
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4 people found this helpful
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LuzMa
5.0 out of 5 stars The best power silent filter ever
Reviewed in Canada on January 23, 2022
Size: 20-30 GallonVerified Purchase
Alexandra
5.0 out of 5 stars Excelente filtro
Reviewed in Mexico on January 11, 2021
Size: 30-45 GallonsVerified Purchase
One person found this helpful
Report
BC
1.0 out of 5 stars Noisy, not quiet
Reviewed in Canada on March 19, 2022
Size: 30-45 GallonsVerified Purchase