Tetra Whisper 4i Internal Power Filter, Filtration for Aquariums Between 1 and 4 Gallons
Original price was: $17.49.$11.99Current price is: $11.99.
Price: $17.49 - $11.99
(as of Apr 03, 2025 13:43:54 UTC – Details)
The Tetra Whisper 1-4 Internal Filter for aquariums is a quiet, dual stage filtration system. This submersible filter mounts on the inside of the aquarium, rather than hanging from the outside, making it possible to place the tank flush against a wall and easily hide with tank decor. The water flows through Ultra-Activated carbon, absorbing odors and discoloration, as well as through the cartridge floss, trapping debris and fish waste. UNIVERSAL DESIGN: Tetra Whisper 1-4 Internal Filter is a dual stage water filter system. INTERNAL FILTER: Mounts on the inside of your aquarium. CATCHES DEBRIS: Dense mesh filters debris and fish waste. CONVENIENT DESIGN: Uses easy to change Whisper Filter Cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall. USE IN: Aquariums 1-4 gallons in size.
Product Dimensions : 3 x 3 x 7.38 inches; 9.14 ounces
Item model number : AQ-68056
Department : Unisex-Adult
Date First Available : October 12, 2018
Manufacturer : Spectrum Brands Pet LLC
ASIN : B07JC6LST2
Country of Origin : China
FOR 4 GALLON aquariums: This Whisper Internal Power Filter uses small filter cartridges and adjusts easily to high or low water levels.
27 GPH PUMP: The internal 27 GPH pump cycles a 4 gallon aquarium more than 6 times per hour.
TWO FILTERS IN ONE: Cartridge floss catches debris and fish waste, while Ultra-Activated carbon removes odors and discoloration.
SPACE-SAVING DESIGN: Your aquarium can be flush to the wall with the internal filter designed to clip on your tank wall and be hidden by décor.
EVERYTHING YOU NEED IS INCLUDED: This pack contains the hinged lid, tank clip, internal filter and filter cartridge.
Customers say
Customers find the power filter super quiet and appreciate its value for money. The water clarity receives mixed feedback – while some say it keeps tanks crystal clear for weeks, others report water backing up behind the filter. The filter quality and durability also get mixed reviews, with some saying it filters well and lasts strong, while others find it too powerful and report it breaking quickly. The size receives mixed opinions, with some finding it perfect for 2.5-gallon cube aquariums while others say it’s too large for 5.5-gallon tanks.
AI-generated from the text of customer reviews
9 reviews for Tetra Whisper 4i Internal Power Filter, Filtration for Aquariums Between 1 and 4 Gallons
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Original price was: $17.49.$11.99Current price is: $11.99.
TruthTeller –
Love, Love This Filter!
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.
DanB –
Works perfectly
I have to say I’m quite impressed of how good it works. It keeps my turtle’s tank clean and doesn’t make much noise as I was expecting so it really was kept me satisfied with the purchase. I had to unplug it at the first use because my turtle was playing with it and trying to move it (I guess because it was her first time seeing it and was curious) I didn’t put enough water and when plug it back in I thought it got damaged because it wouldn’t turn on but it’s a little tricky because I won’t start until you fill it in with the right amount of water. Pretty amazing device and just for a few bucks. ð My turle is happy and got used to it already after a day of installing it. She loves the bubbles and the waterfall sound effect (which is relaxing and minimal) I bought the huge filter on mistake so I had to order another one but that’s ok because my turtle is growing super quick and soon I’ll need to get a bigger tank. Second size filter fits perfect for now.
weiwei –
Whisper 10 slow flow verses other filters that I tried.
Great filter and I bought two, one for a 5 gal and the other for 10 gal. Yes the flow is a bit harsh for Betta, but I managed to attach sponge bio filter at the whisper’s outflow lip, please see pic. I drilled one hole at each corner of the lip and attached the bio filter using thin zip ties. I also managed to get the suction cups onto the back of the whisper. Getting the suction cups was difficult, but using a precision flat head screwdriver and patience, it was easier. With the suction cups I can close the lid flush to the tank. I had the topfin silentpower filter 10 before this whisper, and the whisper cleans it better and the filter cartridges are cheaper. The whisper is not too loud, but louder than other filter I have, the marina slim 10. The marina slim 10 cleans pretty good, but it’s a power filter with the reservoir overhang on the back. I like the whisper internal filter more because I can lower the water level in the tank but lowering the filter itself. With the marina hanging over the top edge prevents you from lowering the filter, therefore when the water level gets low, you get more splash which my Betta didn’t like. I also used the bio filter sponge on the marina to slow it’s output flow with Max inflow setting. Also used a zip tie to attach the sponge on top of the lip instead of below it’s lip. Well i just wanted to share how I modded this whisper and other filters. Which one is best depends on the fish? For my Bettas, the modded whisper and modded marina are good with slow flow rate, good clean output, and reasonably priced filter cartridges, the marina doesn’t filter as well as the whisper IMO. So I use the marina for 3 gal tanks for my bettas.
Amazon Customer –
Works very well and worth every penny!
The anchor that hangs on the back is really long so the filter itself has a large footprint in your tank, but itâs worth it. Mine tipped and dumped water out of the tank and continued running dry all night. I was SHOCKED when I refilled the tank and it still worked and started filtering immediately. The tipping was user error because making room for it has been a challenge with all of my established plants. Itâs my favorite, most reliable filter Iâve ever purchased for its ease of set up, cleanliness and reliability. One less star because of the anchor and footprint but well worth the money.
Juan Carlos –
Silencioso y mantiene la pecera limpia
Amazon Customer –
Its quiet, does the job as an equal bonus my tank is small and it oxygenates the water enough that I don’t need a pump
Dr.Zain –
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Paola R. –
Los pocos dÃas que lleva en uso a sido 100% efectivo, limpio el agua de mi pecera a pesar que ya estaba un poco sucia.Súper silencioso y de buen tamañoHasta ahora todo bien
Scott –
Plugged it in and it was dead. Waste of time and money, spend it elsewhere. Now Iâm left with extra filters that I purchased and a dead pump/filter. Not happy Jan.