Tetra Whisper IQ Power Filter 20 Gallons
130 GPH, with Stay Clean Technology
Price as of 2026-06-05. Check Amazon for the current price.
Quick Decision
Price Intelligence
Currently $23.17 — the 90-day average is $20.80.
All-time low: $14 on Mon Nov 18 (from 146 price checks).
Is This Right For You?
- •Risk-averse buyers — 13,618+ reviews give a highly reliable picture
- •Top 5% bestseller in Aquarium Filters — proven market demand
- •Tetra loyalists — the brand spans 49 products in our database
- •Tetra Whisper Internal Power Filter 5 to 10 Gallons offers a better rating (4.3/5) at a similar or lower price ($16)
- •HiTauing 8 Pack PF-L Carbon Cartridge — 57% cheaper at $10 (Score A)
- •Aqueon Aquarium Fish Tank Replacement Filter Cartridges — higher rated at 4.8/5 ($12)
📊 Based on data analysis of 60 products in this category.
Mubboo Score: A-
How It Compares
This Product Tetra Whisper IQ Power Filter 20 Gallons | Most Popular Tetra Whisper Internal Power Filter 5 to 10 Gallons | Best Rated Aqueon Aquarium Fish Tank Replacement Filter Cartridges | Best Value HiTauing 8 Pack PF-L Carbon Cartridge | |
|---|---|---|---|---|
| Price | $23.17 | $15.97 | $11.95 | $9.99 |
| Rating | 4.2/5 | 4.3/5 | 4.8/5 | 4.6/5 |
| Reviews | 13,618 | 22,303 | 12,505 | 1,952 |
| Mubboo Score | A- | A | A+ | A |
Quick Specs
- Capacity
- 20 Gallons
- Material
- Plastic
- Unit Count
- 1 Count
- Item Weight
- 2 Pounds
- Part Number
- 78001-00
- Manufacturer
- Tetra
- Model Number
- 78001-00
- Material Type
- Plastic
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Ensure the filter is properly sized for your tank and fish; small fish may require a gentler flow or intake guard. Monitor water level to prevent noise and have a skimmer for surface film.
- Keeps water crystal clear and effectively removes odors and debris
- Easy to assemble and set up with minimal effort
- Excellent value compared to pre-assembled alternatives
- Quiet operation when water level is adequate
- Reliable and long-lasting performance
- Noise when water level drops or component misalignment
- Charcoal dust mess during cartridge assembly
- Can trap or injure small fish
Expert Picks in Aquarium Filters
- LifeStraw Escape — emergency water purification after disasters
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
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Key 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).
Source: product listing on Amazon.
About Tetra
- 49 products in our database
- Average rating: 4.6/5 across all products
- Price range: $2.99 – $451.99
- Categories: Aquarium Air Pumps, Aquarium Filters, Aquarium Heaters, Aquariums, food-pet
Other Aquarium Filters
Featured in Our Reviews
Bottom Line
Tetra Whisper IQ Power Filter 20 Gallons earns Mubboo Score A-. At $23 it's above the 90-day average of $21 — waiting for a dip may pay off. Rated 4.2/5 from 13,618+ reviews. Strong buy if: risk-averse buyers, top 5% bestseller in aquarium filters. Skip if: tetra whisper internal power filter 5 to 10 gallons offers a better rating (4.3/5) at a similar — Tetra Whisper Internal Power Filter 5 to 10 Gallons (Score A, $16) may fit better.
Frequently Asked Questions
Is the Tetra Whisper IQ Power Filter 20 Gallons worth buying in 2026?
It earns a Mubboo Score of A-, with a 4.2/5 rating from 13,618 reviews — better than 33% of Aquarium Filters we track.
How much does the Tetra Whisper IQ Power Filter 20 Gallons cost?
It is currently $23.17. The 90-day average is $20.80 and the all-time low we recorded is $14.
How does the Whisper IQ Power Filter 20 Gallons compare to other Aquarium Filters?
The category's most-reviewed alternative is the Tetra Whisper Internal Power Filter 5 to 10 Gallons (4.3/5, 22,303 reviews, $15.97). The Whisper IQ Power Filter 20 Gallons carries a Mubboo Score of A- vs A.
Sources & References
Mubboo may earn a commission from purchases made through links on this page. Prices and availability are accurate as of the last sync (2026-06-05) and may change.