Okay so... I have a 20 gallon temporarily for my 4 inch turtle. I accidentally bought the smallest of this tetra filter, so I bought the medium sized one in it's place. I had only had the tank filled halfway anyway since my turtle was only 1.5 inches at this point. Mind you I didn't realize how fast they grow, and had no idea that Its recommended to have a filter that can filter 2 to 3x the tank size. So I decided to keep both filters in my tank. One on each side. Even though I still don't reach the recommended filter size, my water now almost filled to the top, stays absolutely clean. Turtles are pretty messy so I still have to do the weekly cleanings and all that extra stuff that apparently those who spend hundreds of dollars on filters still have to do as well. I don't know if this is some kind of luck thing, I don't know if maybe my turtle just isn't that dirty (yea right, I see him)... but I'm actually not looking forward to switching out my filter for the 'recommended' filter size, as these filters work so good. I love them.
They are both very quiet. Aside from the sound of the water falling back in.. I mean it sounds like a waterfall. Who doesn't want to hear a waterfall? I love it. This can also be prevented by raising the water level or lowering the filter itself. Basically the closer it is to the water, the quieter it is.
Such a simple device, yet so beautifully sufficient.
The little one stopped working at one point and I thought... welp there you go! Get what you pay for. But nope! Removed the base, pulled out the magnetic spring propeller and tube, cleaned it out and like magic it started right up as soon as I plugged it back in.
Love how easy it is to replace the filters. The filters themselves are great and definitely hold on to some dirtiness.
One thing I'll say is there is quite a bit of unused empty space. I now take advantage by adding some extra media, but I must say that these filters work great even without the extra.
Love this filter and would recommend above any other filter.
Tetra Whisper In-Tank Filter 40i with BioScrubber - 20-40 gallon (25818), Black
4.3 | 20,427 ratings
Price: 11.39
Last update: 08-03-2024
About this item
UNIVERSAL DESIGN: Tetra Whisper 40i Internal Filter is an all-in-one air pump and water filter system.
INTERNAL FILTER: Mounts on the inside of your aquarium with clip (included).
CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.
AERATES WATER: Air-driven design filters up to 170 GPH while oxygenating water.
CONVENIENT DESIGN: Uses large easy to change Bio-Bag cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall.
INTERNAL FILTER: Mounts on the inside of your aquarium with clip (included).
CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.
AERATES WATER: Air-driven design filters up to 170 GPH while oxygenating water.
CONVENIENT DESIGN: Uses large easy to change Bio-Bag cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall.
Product information
| Item Weight | 1.5 pounds |
|---|---|
| Department | Unisex-Adult |
| Manufacturer | Tetra |
| ASIN | B0002DHYH2 |
| Country of Origin | China |
| Item model number | 25818 |
| Batteries | Product Specific batteries required. |
| Customer Reviews |
4.3 4.3 out of 5 stars
20,427 ratings
4.3 out of 5 stars |
| Date First Available | June 9, 2004 |
| Item Package Dimensions L x W x H | 10.46 x 6.02 x 5.1 inches |
| Item Dimensions LxWxH | 5.13 x 5.88 x 10.5 inches |
| Item Weight | 1.5 Pounds |
| Brand Name | Tetra |
| Target Audience Keyword | fish |
| Directions | See label for details |
| Warranty Description | See label |
| Model Name | Whisper Internal Filter |
| Color | Black |
| Size | Up to 40-Gallons |
| Material | 100% Polyester |
| Age Range Description | all ranges |
| Number of Items | 1 |
| Manufacturer | Tetra |
| Included Components | Whisper In-Tank Filter 40i (upto 40 Gal) |
| Specific Uses for Product | Indoor |
Top reviews from the United States
TruthTeller
Love, Love This Filter!
Reviewed in the United States on September 29, 2023
Gregg H
Great value, super easy to clean.
Reviewed in the United States on August 12, 2023Amazon Customer
Works very well and worth every penny!
Reviewed in the United States on July 2, 2024Aleena
Awesome and inexpensive.
Reviewed in the United States on July 17, 2024
Aleena
Reviewed in the United States on July 17, 2024
I couldn’t find a syphon to help me clean her tank when I first used it so I had to just do my best with a water change and pray the filter worked well, low and behold an hour later almosy all the residual yucky stuff was gone. Awesome filter for an unbeatable price.
Images in this review
