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Tetra

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

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Availability: In Stock.
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Arrives Tuesday, Jun 30
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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.

Brand: Tetra


Product Dimensions: 6.88"L x 6"W x 6.88"H


Material: Plastic


Capacity: 20 Gallons


Included Components: See Label


Item Weight: 2 Pounds


Model Name: Whisper IQ Power Filter


UPC:


Global Trade Identification Number: 14


Manufacturer: Tetra


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: #1,425 in Pet Supplies (See Top 100 in Pet Supplies) #1 in Aquarium Filters


#1 in Aquarium Filters:


Brand Name: Tetra


Included Components: See Label


Model Name: Whisper IQ Power Filter


Model Number: 78001-00


Warranty Description: See Label.


UPC: 046798780014


Global Trade Identification Number: 14


Manufacturer: Tetra


Part Number: 78001-00


Item Type Name: Pet Supplies


Unit Count: 1 Count


Item Dimensions L x W x H: 6.88"L x 6"W x 6.88"H


Capacity: 20 Gallons


Item Weight: 2 Pounds


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 30

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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Similar Products

Top Amazon Reviews

    • Great quality.
Size: 20-Gallon
Works great. Buy this to replace my older Tetra filter - probably 10+ years old. Easy to install, just rinse, plug and it's run great. It's silent - like really silent and the flow control really work. You can control the flow from slow to fast, good if you have baby or small fish. Really great upgrade from Tetra. ... show more
Reviewed in the United States on May 10, 2026 by Ivan
    • Perfect replacement for an old unit that no longer works. Perfect replacement for an old unit that no longer works.
Size: 30-Gallon
Review Image by Mad_Scientist
Review Image by Mad_Scientist
Review Image by Mad_Scientist
I’m using this on a 30 gallon aquarium. It’s replacing a unit that worked for many years, until the impeller broke a couple days ago. Assembling this one and getting it in place was easy. I had it up and running in no time at all. It’s very sturdily built, runs quietly and keeps the water clear. The price was competitive for power filters of this type. ... show more
Reviewed in the United States on March 30, 2026 Reviewed in the United States on March 30, 2026 by Mad_Scientist
    • Great filter for 36 gallon aquarium
Size: 45-Gallon
I bought this Whisper IQ filter for my 36 gallon aquarium and it works perfectly. It has a strong water flow, and when you install it, the waterfall-style output is pretty powerful. It can make a little bit of noise because of the water flow, but nothing too annoying. It keeps the water clean with no issues. Overall, I’m very satisfied with this purchase and would definitely recommend it. ... show more
Reviewed in the United States on May 21, 2026 by Fernando
    • Probably just user error
Size: 45-Gallon
My tank is taller than an average 40 gallon tank so this just barely works for my fish tank struggled to get it together and working, but I’ve had no issues since installing. It works pretty well so far.
Reviewed in the United States on January 17, 2026 by anna
    • BEST FILTER FOR BETTAS BEST FILTER FOR BETTAS
Size: 10-Gallon
Review Image by Catsofmany
Review Image by Catsofmany
I bought two of these filters despite a couple negative comments. I've had aquariums for 40 years with many different filters. I currently have a 5, 10, 20, 30, 55 and a 120 for tanks. The 10 gallon tank houses 2 Betta fish with a tank divider. One Betta lives with 2 cherry shrimp but the other is too aggressive to add tankmates. I run a filter on each side. Finding a filter that didn't blow the fish across the tank has been difficult. I've tried a few small ones but they failed to keep the tank clean and the filter cartridges were only an inch wide. I decided to take a chance and I haven't been disappointed. Granted, it's only been a few days. The adjustable water flow is perfect for the Bettas and shrimp. As you can see in one of the pictures, one shrimp likes to sit inside the spillway and obviously not a strong current coming out of the filter. The tank cleaned up beautifully in 24 hours. I did put the inch wide filter cartridge from the old filter into the new filter along with the new filter cartridge for the beneficial bacteria. The Tetra filter is super quiet, appears to be easy to clean and intake strainer is small enough not to suck up the shrimp. The other issue I've had with other filters is failure to prime when our electricity blinks which happens a lot in our town. The Tetra is self-priming so I no longer have to worry. I like that it also has a bio-scrubber (the green basket that cultivates beneficial bacteria). I certainly will update if there are any problems. UPDATE: 16 days...The filters are keeping the tanks clean and the self priming has been wonderful during the last power flickering. The only problem I had is the filters are just a bit too wide for my glass top to sit as far back as it needs to go. Using a pair of snips, I put a small notch into each side of the filter now allowing my glass top to slide into place. ... show more
Reviewed in the United States on August 27, 2024 Reviewed in the United States on August 27, 2024 by Catsofmany
    • Tried and true
Size: 60-Gallon
This is my second Tetra IQ filter. My first one lasted about ten years and is still running strong on my 55‑gallon tank. Recently it started making a light clicking noise, cleaning helped, but I took it as a sign that it was time for an upgrade. This new version is even better. The redesigned cover prevents splatter and stops calcium from building up on the lid, and it runs noticeably quieter than the older model. I like it so much that I’m ordering a second one for the other side of the tank. I keep African Mbunas, and they’re a messy bunch, so strong, reliable filtration is a must. This filter definitely delivers. ... show more
Reviewed in the United States on March 9, 2026 by CRiquelme
    • Tetra Whisper 20 Gal Filter
Size: 20-Gallon
I am so glad to have a second filter. They do a good job keeping the water clean and not cloudy. It's like a little waterfall when you allow the water to go down an inch or two. Also it is nice and quiet. The flowing water sounds nice if you don't fill the tank to the brim. Love the overnight , free delivery. ... show more
Reviewed in the United States on March 20, 2026 by David Markle
    • Cleaned well but iq60 but didnt last a year.
Size: 60-Gallon
Worked for months and cleaned amazing, just boughts the filters to replace. But motor died.
Reviewed in the United States on May 14, 2026 by james robert gydosh

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