Whisper^® Internal Power Filter

Product No. 25846

Whisper® Internal Power Filter is rated 2.4 out of 5 by 16.

The Tetra Whisper internal aquarium filter is the ultimate in quiet, convenient 3-stage filtration. The dual-sided mesh of the Bio-Bag® catches debris and fish waste while the activated carbon absorbs odors and discoloration. Biological filtration is provided by the Bio-Scrubber. Bio-Scrubber's anti-clog design provides complete biological filtration with the convenience of less maintenance. Because the Bio-Scrubber has a solid back, water is forced to flow evenly over the bacteria-rich bristles. The filter is submersible.

NOTE: The filter now comes with a clip to hold the filter. If suction cups are needed please contact Consumer Services at 1-800-322-1266.

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Sizes Available

This product comes in the following sizes:
Whisper 3i - 20 GPH
Whisper 10i - 80 GPH
Whisper 20i - 125 GPH
Whisper 40i - 170 GPH

Instructions

Whisper Internal Power Filter 3i

Whisper Internal Power Filter 10i 20i 40i

Product Reviews
Question & Answer

Rated 2 out of 5 by lydzo from WHISPER FILTER Just installed the whisper 3 and not impressed. It doesn't fit right in my tank I can not put the lid on, the motor has to be higher than the water level and the plug in has to hang ???. It just spits out water from the spout but the clear bubble part is going strong. Its not designed for my tank and I will find a more suitable one then return this one.

Date published: 2018-10-06

Rated 1 out of 5 by OneDelta from Why does it have holes and no suction cups? Filter is quiet and would work great, but it comes with no sucktion cups and has holes in the back!? The water leaks out the back and this doesn't work with my tank setup (clip doesn't fit on my tank style).

Date published: 2018-09-26

Rated 1 out of 5 by ebie from Extremely Annoyed I recently purchased this filter. The box said it came with suction cups as well as the clip. Upon opening the box I realized only the clip came with the filter. I am unable to use the clip since my aquarium has a lip on the top. I contacted customer service and they basically said “too bad” buy suction cups from our website. There is no way I am paying 4.20$ for suction cups and 13$ in shipping.

Date published: 2018-09-26

Rated 5 out of 5 by JayElleBee from Great until it's not Purchased two filters for my tanks. The large filter is going strong, but the smaller one just pooped out this week. It was running great, quietly, and reliably for less than a month before it simply stopped. I am super bummed about it, because I quite like the filter for its aesthetics and functionality! Had it not quit, then it would get a solid FINE STARS without hesitation. I suppose this is simply a "buyer beware" tale. They are wonderful while operational, but that period of time might be limited. [saddest face]

Date published: 2018-08-14

Rated 1 out of 5 by Megg116 from Terrible filter The suction on this filter is by far the worst i have ever seen. Even after two week of having it I have lost two whole tanks of fish thanks to this product. The water is constantly cloudy and/or slightly brown. That is even after a partial water changes or even total tank cleaning and filter cartage change. I even changed fish food brands to see if that would help, but sadly no. I Will not be buying this product again.

Date published: 2018-08-02

Rated 1 out of 5 by jack28 from Very noisy I bought this a few days ago and already don’t like it. The air pump isn’t very nosy. The clip doesn’t fit on the tank so I had to tape it up. The filter has to be at an exact angle for the filter to so somewhat quiet. I also have a larger tank with a Top Fin filter and it barely makes a noise.

Date published: 2018-07-11

Rated 5 out of 5 by knuckle lady from Nice! Quiet, and easy to set up. Works beautifully Not sure what everyone else with bad ratings was talking about. The pump is quiet enough. Cute lit tank.

Date published: 2018-06-01

Rated 5 out of 5 by DeeRhodes from Quiet and good so far Set mine up yesterday and it is quiet and working properly, maybe it’s a new design since some people seem to hate it. I just wish with my bubbling led there was a way to turn off the led lights and leave the bubbles on.

Date published: 2018-05-25

Whisper® Internal Power Filter Reviews - page 2

Can you use a pre-filter sponge over the intake with this filter (and pump)?

Asked by: Ppie14

That depends on which internal filter you are referring to...the 3i will take the pre-filter sponge, but it just has a tube that extends down, and the pump is an air pump outside the tank. The 10, 20, and 40 internal filters have internal pumps, but the outer cage is pretty good size, and I do not know of a pre-filter sponge that will fit them. BREX

Answered by: BREX

Date published: 2018-10-10

When you say that you recommend it with the floss side facing into the tank for best filtration. By into do you mean facing forward or back with the filter mounted on the back and inside the tank.

Asked by: Ppie14

It will be facing forward in the filter, towards the middle of the tank. BREX

Answered by: BREX

Date published: 2018-10-03

When you replace the filter cartridge does the tank have to cycle all over again because you're completely changing the filter medium where the good bacteria are.

Asked by: Ppie14

No, not at all. Bacteria is everywhere, but especially in the gravel and the water, as well as all throughout the filter system, not just the cartridge. BREX

Answered by: BREX

Date published: 2018-10-03

Which way does the filter cartridge go in? I have a whisper 3i that's in the tank. There seems to be varying opinions which way to put it in. There's a hard plastic side with slots and a fluffy side.

Asked by: Ppie14

It can go in either way, actually, since water will flow through it either way. However, we recommend it with the floss side facing into the tank for best filtration. BREX

Answered by: BREX

Date published: 2018-09-27

5-10 pump. No instructions with filter. Where do the charcoal carbon go? in the filter? 4 filters 4 charcoal pkts

Asked by: PattyY

It sounds like you bought a 4 pack of unassembled filter cartridges. Cut the carbon packet open and pour it into the floss, but do this after you place the green frame inside the floss first. Once the carbon is in, fold the frame over the floss, and put the clip on. BREX

Answered by: BREX

Date published: 2018-09-26

Have 2 gal tank w/Whisper 3i. Been in storage/just unpacked/put together. Does the 3i come with an impeller? If so - now lost. Where can I get new one?

Asked by: imbri33

No, it does not. It is air driven and should have an air pump with air line tubing to operate it. BREX

Answered by: BREX

Date published: 2018-09-19

OK so my tank water doesn't reach the fill line. Is there anyway i can still have it work without adding more water the tank is for fish and turtles and i cant have the water to high for the turtle

Asked by: jess0303

You should add more water, period. Turtles are not shallow water animals, other than a very few species, but most of the popular species such as red eared, yellow bellied or painted turtles all require a minimum of 12" of water. Even hatchling turtles are born in ponds and lakes, and prefer a depth of 6-12 inches. This allows for plenty of swimming and exploring, exercise, etc. They also like to sleep on the bottom (preferably a bare bottom) of the tank, under rocks or driftwood. Keep in mind the fish may not survive with the turtle, and are not a great food source as a regular diet. If you have any questions, don't hesitate to reach out to me. :-) BREX

Answered by: BREX

Date published: 2018-09-19

I purchased this product and the suction cups that the box said were included were not in the box. Please advise.

Asked by: Amy Sharp

Our latest package states they are not included but are optional and can be purchased separately. We do sell them here: http://www.tetra-fish.com/products/parts/suction-cups-for-whisper-in-tank-3i.aspx. BREX

Answered by: BREX

Date published: 2018-09-13

Whisper® Internal Power Filter Questions - page 2