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Tetra

Tetra Whisper IQ Power Filter 20 Gallons, 130 GPH, with Stay Clean Technology

  • Based on 12,054 reviews
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Availability: In Stock.
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Arrives Tuesday, Dec 16
Order within 9 hours and 42 minutes
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Size: 20-Gallon


Features

  • QUIET AQUARIUM FILTER: The Tetra Whisper IQ Power Filter with Stay Clean technology contains a sound shield for quiet filtration less than 40 dB.
  • SELF PRIMING: Submerged motor starts up with no priming required.
  • CAPACITY: The Tetra Whisper IQ 20 Power Filter works in filters up to 20 gallons (130 GPH).
  • STAY CLEAN TECHNOLOGY: By maintaining healthy pH levels, creates easier maintenance for healthier fish.
  • CARTRIDGE REFILLS: Change cartridges monthly; uses large-sized Tetra Whisper Bio-Bag Filter Cartridges (refills sold separately).

Description

The Tetra Whisper IQ Power Filter with Stay Clean technology keeps aquarium water clean and clear. This quiet filter contains a soft barrier between the motor and the filter that serves as a sound shield to minimize noise. The bio- scrubber cultivates aerobic bacteria to remove toxic ammonia and nitrite, and the smart path spillway oxygenates the water and agitates the surface. With a self-priming, submerged motor and adjustable intake to fit your aquarium’s needs, the Tetra Whisper IQ Power Filter is perfect for use with both freshwater and marine fish. Works with easy-to-change Tetra Whisper Bio-Bag Filter Cartridges with Stay Clean technology – helps reduce buildup on aquarium glass, bind small dirt particles to make them easier to filter and stabilize pH levels to prevent crashes, meaning easier aquarium maintenance for you. Tetra Whisper IQ Power Filters are available in a range of sizes to fit your aquarium. This Tetra Whisper IQ 20 Power Filter treats aquariums up to 20 gallons (130 GPH). Convenient color coding makes it simple to choose the correct size replacement cartridge – use with size large Tetra Whisper Bio-Bag Filter Cartridges (blue packaging). Since 1951, Tetra has developed the world’s most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand 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.

Product Dimensions ‏ : ‎ 6.88 x 6 x 7.75 inches; 2 Pounds


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ 78001-00


Department ‏ : ‎ Unisex-Adult


Batteries ‏ : ‎ Product Specific batteries required.


Date First Available ‏ : ‎ February 6, 2017


Manufacturer ‏ : ‎ Tetra


Best Sellers Rank: #2,055 in Pet Supplies (See Top 100 in Pet Supplies) #3 in Aquarium Filters


#3 in Aquarium Filters:


Item Weight: 2 pounds


Department: Unisex-Adult


Manufacturer: Tetra


Item model number: 78001-00


Batteries: Product Specific batteries required.


Date First Available: February 6, 2017


Item Package Dimensions L x W x H: 10.98 x 8.39 x 6.22 inches


Item Dimensions LxWxH: 6.88 x 6 x 7.75 inches


Item Weight: 2 Pounds


Brand Name: Tetra


Target Audience Keyword: Fish, fish


Directions: See label for details


Warranty Description: See Label.


Model Name: Whisper IQ Power Filter


Size: 20-Gallon


Material: Plastic


Age Range Description: Senior


Number of Items: 1


Style: 20-Gallon


Included Components: See Label


Specific Uses for Product: Weaning


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • As described
Size: 10-Gallon
Runs whisper-quiet and keeps the water crystal clear—my tank looks spotless after just a few days. The Stay Clean cartridges make maintenance simple, and the flow is powerful enough to keep things moving. The only drawback is size: in my 5-gallon tank it feels bulky, and I had to angle the top to fit. Perfect match for a 10-gallon setup, but a tight squeeze in smaller tanks. ... show more
Reviewed in the United States on November 30, 2025 by Brian C
    • Quiet
Size: 60-Gallon
Works perfect!! Quiet and easy to adjuat the flow! Love all 8 of my Whisper filters!
Reviewed in the United States on December 6, 2025 by Christine Lee
    • The adjustable flow makes the 10 gallon filter perfect for a fry tank
Size: 10-Gallon
Tetra whisper IQ power filter 10 gallons: I love the adjustable flow. I wanted a hob for my 10 gallon cory fry tank, the sponge filter just wasn’t cutting it on keeping the tank looking clean. The 1st hob I tried didn’t have an adjustable flow and the fry were clearly struggling in the current it created. So I got this tetra filter. I’ve only had it running a few days but so far couldn’t be happier with it. I have it on a medium/low flow setting and it’s perfect for the fry. It was easy to set up. I didn’t use the adjustable intake tube, that would have been too long. Without the intake tube, the intake sits right in the middle of the tank. And a small intake pre filter sponge fits nicely on it, don’t even need to secure it with a zip tie. I cut some filter sponges to fit where the disposable cartridges go. I also love it has an internal pump, why some others don’t have an internal pump is beyond me. It’s not very noisy which is nice also. All in all, the adjustable flow and easy pre filter sponge application/maintenance makes the 10 gallon filter a great fry tank filter in my opinion. I paid $13.99 before tax for it, which seems like a good price. ... show more
Reviewed in the United States on August 20, 2025 by Jillian
    • Low price filter for smaller tanks
Size: 10-Gallon
It’s very quiet but can make a bit of vibrational noise if the cover is misaligned. No big deal. You can just readjust it. Maintenance is very simple. The siphon self starts after you power it up, so there’s no need to fill it with water beforehand. There’s also plenty of room in the canister for media of your choice. The water flow is strong initially, after a filter media change, but after a few weeks of use, it tends to slow down to a near drip, especially if you have a lot of sponges, floss or carbon in there. Its main drawback, imo, is its size. It’s bulky. I have it hanging on the back of a tiny 5 gallon nano tank and it looks a little out of place in relation to the small tank. Otherwise, decent HOB filter for small aquariums, at a very low price . ... show more
Reviewed in the United States on November 25, 2025 by Anthony Carabello
    • Worst filter I’ve ever used
Size: 20-Gallon
I bought a filter, an area on the back near the pump seemed a bit loose but I figured it would hopefully work fine. Got it set up and installed and it was prwtty much silent! However, this was the ONLY pro. It seemed to be working fine for a couple days and then suddenly my tank was a few inches low. It had started pumping water into the back but letting it pour out onto the floor through the crack instead of back into the tank. I figured this particular pump must be defective and was potentially damaged during transport so I returned it for a replacement as I thought the price was still the best. I received the new one with he same crack, but hoped that part wasn't really the problem, alas, it was, and after a few days of proper functioning, it began siphoning the water out again, thankfully this time I placed a bucket under the drip loop and it did not make a huge mess. Penn Plax cascade filter was a little more expensive, but makes up for it by functioning properly and letting you replace the pump ins to ad of the whole filter if it does eventually burn out ... show more
Reviewed in the United States on November 30, 2025 by Julia
    • Great filter.
Size: 45-Gallon
Dead silent and it starts its own siphon. The only time it makes a noise is if I let my water get too low and it starts waterfalling into the tank. But, that's not the fault of the product. I did replace the filter media with a coarse sponge and water polishing filter media, both from aquarium coop, so that I don't have to pay a recurring filter media cost. I also bought a sponge for over the intake. That helps its filtering capacity a lot and keeps shrimps and fry from getting sucked in. ... show more
Reviewed in the United States on October 20, 2025 by robert grisez
    • Works well
Size: 30-Gallon
Been running for over a year now and keeps water very clean. I run 2 on a 55 gallon tank.
Reviewed in the United States on December 5, 2025 by Handsome B. Wonderful
    • Fish tank filter
Size: 45-Gallon
One of the best fish tank filters that I have found. Would buy again. Pretty quiet and easy to put together
Reviewed in the United States on December 2, 2025 by Rachel B.

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