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Tetra Whisper In-Tank Filter

by Tetra
3.7 out of 5 stars 695 customer reviews
| 27 answered questions

List Price: $30.99
Price: $17.74 & FREE Shipping on orders over $35. Details
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Up to 10-Gallons
  • Designed for Use in Smaller Aquariums Up to 10-GallonUses Medium Whisper Bio-Bag Cartridges
  • Uses Medium Whisper Bio-Bag Cartridges
  • Provides convenient 3 stage filtration
20 new from $9.14 5 used from $6.13

Tetra Color Fusion Aquarium
$17.74 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Tetra 25816 Whisper In-Tank Filter with BioScrubber, 3 to 10-Gallon
  • +
  • Tetra 26160 Whisper Bio-Bag Cartridge, Unassembled, Medium, 12-Pack
Total price: $26.73
Buy the selected items together

Special Offers and Product Promotions

Size: Up to 10-Gallons

Product Description

Size: Up to 10-Gallons

For the ultimate in convenience and quiet, choose a Whisper In-Tank Filter. These filters mount on the inside of the aquarium, rather than hanging from the outside -- making it possible to place the tank flush against a wall. In-Tank Filters are unusually quiet, since the motor is under the water. Offering the same quality and performance as an external filter, the Whisper In-Tank Filter will function in as little as 2 inches of water -- making it ideal for turtle tanks, or for creating a waterfall inside the tank.The Whisper In-Tank filter features adjusts easily to high or low water levels with mounting suction cups and/or bracket. Each filter comes with one pre-assembled Whisper Bio-Bag filter cartridge.

Product Details

Size: Up to 10-Gallons
  • Product Dimensions: 4.2 x 4 x 8 inches ; 1 pounds
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B0002DHYF4
  • Item model number: 25816
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (695 customer reviews)
  • Amazon Best Sellers Rank: #8,344 in Pet Supplies (See Top 100 in Pet Supplies)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Reviews

Top Customer Reviews

Size: Up to 40-Gallons
I own 7 pet turtles. I have two red-eared sliders, four mud turtles and one map turtle. I use the Whisper 40i filters in all my turtle tanks. After trying several different types of filters (ie Zoo Med 501 and Reptofilter) for my turtle tanks, I have found that these work the best and are the easiest to use.

First of all, they do keep the water clean as long as you change the filter media regularly. How often it needs to be changed depends on the type of animal, or in my case turtle, that you own. It also depends on the amount of water in your habitat and other factors. The replacement media is fast to change and more inexpensive than the replacements for other turtle filters I've used.

The filter can be either hung on the side of the tank or completely suction cupped to the side. For functionality, I have found that tanks with shallow water do better with the filter sitting on the bottom of the tank and attached to the wall. Also, pets that are more likely to knock the filter down should have it attached to the wall instead of hung. When it falls in the water, the tank can become very dirty within a matter of hours. My sliders kept knocking one in the water and now the motor does not seem to work as well as it once did.

Make sure that your tank will have at least 4 inches of water in it or this filter will not work for you.

Overall, a solid product!
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Size: Up to 3-Gallons Verified Purchase
I first bought this filter for my 1.5 gallon tank that has a betta fish in it. It was the perfect size for the tank. It did a really good job at keeping the water in the tank clear. At about 8 months after I bought it, the water would only trickle out of the filter. I tried taking it apart, cleaning the filter out, putting it back together (as sometimes gunk builds up in my other filter that slows the amount of workload it can handle). No change. I originally planned to buy a different brand of filter, but I couldn't beat this price and still had some filter cartridges left over. I saw that other people have said that they have bought more than one with better luck. So, I decided to take the risk. I was curious to see what the problem was, so i tried substituting certain parts of the filter with the old one. The problem was definitely the little motor. For some reason it didn't push air through the filter as much as it did in the beginning.

Either way, I do like the filter and I hope this one holds out. Its perfect for a betta fish's tank- and I like the price.

------

Wrote that review on January 7, 2011 and it is now February 10, 2011 and the filter is no longer working the way it should. The water only trickles out of the filter, making it unable to do its job. I'm sick of having to deal with this.. I would just like my filter to work like it said it would!!! Don't buy this filter unless you want to replace it a month later....(This is the second one I have purchased with the same result.)
13 Comments 86 of 93 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Up to 40-Gallons Verified Purchase
Had to buy 2 of these within 2 years, they don't hold up long enough for the price you have to pay, motor quit, it should last longer than what it does.
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Size: Up to 3-Gallons Verified Purchase
If you have a small fish, like a Beta, it is nicer to keep them in an actual tank than a bowl or cup. It will keep the fish alive longer too. This filter is easy to use & changing out the charcoal pouches is simple. My small child is able to do this on her own. The filter is relatively quiet and easy to install.
Comment 25 of 25 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Up to 10-Gallons
I have two African dwarf frogs and was missing a frog one night.
I could not find her. I finally found her in the filter.
I have now learned through reading other web sites; it's best to put pantyhose or cheesecloth over a part of the filter, (use common sense on watching how it does filter so the filter will still do it's job) to protect your frog from becoming stuck.
My girl was saved.
The filter does work, just be careful and aware if missing an aquarium baby.
4 Comments 68 of 81 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Up to 40-Gallons Verified Purchase
It's very quiet and easy to setup,runs on low water and my turtles like to be under the cascade. Very easy to clean also.
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Size: Up to 20-Gallons
I bought this from a local supermarket (meijers) about 2 and a 1/2 years ago, when i first got my aquarium. it is lasted sense then with absolute zero problems. well, actually it does have the tendency to get small, weak, and/ or sick fish stock to the intake grill, but that can be expected from any good filter. It has kept the water crystle clear. When i first turned it on, it was so silent that i thought it was broken. If your a begining fish keeper, i strongly recomend this product.
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Size: Up to 3-Gallons
i had this filter for a grand total of a week before installing a new one, i would have taken it back to the store the same day if i had another option for a filter, however i went ahead and purchased the TOM Aquarium Mini Internal Filter 45gph adjustable flow online (which is working perfectly by the way) and waited for delivery. so why is this filter so horrible?
1) the noise is unbearable, this tiny filter for a 3 gallon tank is louder than another filter i have for a 75 gallon tank! unbelievable
2) its made of cheap plastic parts, ( the "lid" broke off during assembly)
the ONLY good thing about this filter is the fact that it is gentle the current is very weak, suitable for my delicate finned male betta.
as for as how it does with actual filtration, for the week i had it, it kept the water clear and well circulated; as far as any long term use i wouldn't know about but honestly in my opinion i wouldn't be surprised if this thing didn't last more than a month, its that flimsy.
8 Comments 38 of 47 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Tetra 25816 Whisper In-Tank Filter with BioScrubber, 3 to 10-Gallon
This item: Tetra 25816 Whisper In-Tank Filter with BioScrubber, 3 to 10-Gallon
Price: $17.74
Ships from and sold by Amazon.com