Give your fishies a clear swimming environment with the quiet Tetra Whisper Internal Power Filter with BioScrubber. The submersible filter includes a 3-stage filtration system with a dual-sided Bio-Bag mesh, which catches debris and fish waste while the activated carbon absorbs odors and discoloration. The bio-scrubber features an anti-clog design for convenient and easy maintenance. The bio-scrubber also has a solid back, which pushes the water making it flow evenly over the bacteria-rich bristles for supreme performance. This filter is compatible with Tetra Bio-Bags for easy and reliable maintenance.
Features a submersible filter with a quiet, convenient, 3-stage filtration system—chemical, biological and mechanical.
Dual-sided Bio-Bag mesh that catches debris and fish waste with an activated carbon that absorbs odors and discoloration.
The bio-scrubber’s solid back allows the water to flow evenly over the bacteria-rich bristles for best performance.
Anti-clog design for convenient and easy maintenance also provided by the bio-scrubber.
5-10 gallon uses medium Whisper Bio-Bag Cartridges; 10-30 and 20-40 gallon uses large Whisper Bio-Bag Cartridges.
When cleaning the filter, unplug it. Do not use detergents or soap, as residues may harm fish.
Do not use sand in the aquarium when using the internal filter.
If the foam grid becomes clogged, remove and wash with water until debris is removed.
Replace filter cartridge every four weeks. To change the cartridge, unplug filter, remove and replace cartridge, and re-plug the filter.
If the motor is noisy, unplug the filter and remove it from aquarium. Remove the motor, open its cover, and flush gravel, leaves, or other debris with cool water. Replace the motor into the filter, mount the filter in the aquarium, and re-plug the unit.
It takes a few weeks for new aquarium water to be conditioned. You can use EasyBalanceTM to speed up conditioning. During the conditioning period, feed fish lightly and be sure all food is consumed.
When putting tap water into the aquarium, add AquaSafeTM water conditioner to neutralize harmful chlorine and chloramines.
Insert the filter cartridge and foam grid. (Note: the front of the foam grid is market "front" and should face the front of the internal filter.)
Hang the filter inside the aquarium and press the suction cup against the aquarium glass. Drape wire over the aquarium wall.
The lip of the internal filter should be above water level, and the bottom of the internal filter should be at least one inch above the aquarium gravel. When positioning plants and other items, leave approximately 1/2 inches of clearance around the filter.
Raise or lower the internal filter by adjusting the filter hanger. Rotate the filter hanger 90 degrees, remove it, and replace it in an alternate alignment hole. (In turtle tanks, the bottom of the internal filter should be submerged in at least 2 inches of water.)
If the filter hanger does not fit on the aquarium frame, it can be replaced with an extra suction cup (provided). When pressed firmly, the suction cup will fit snugly into the filter.
I initially ordered this filter in March 2021. I had it replaced after it broke during the summer, and the replacement just died as well. I'm not happy with this filter at all, it just stops working for seemingly no reason. The gaps on the intake are also large enough that it sucked up and killed two of my smaller fish. It's easy to put together and install, but I can't say anything positive beyond that. Going to toss it and try something else!
Nice filter for the price
on Sep 7, 2021
It’s a good filter for its price but disappointing in some areas. It may not be visually pleasing depending on your tank, it looks a bit too big for a 10gal. It is decently quiet and if you have a fan or something else, it’s drowned out. Kinda disappointed that the 5-10 gallon filter has a speed adjustment and this one doesn’t. If your on a budget it’s a pretty good filter.
on Nov 17, 2021
I was really worried about the size of the whole thing but it cleaned up my foggy water and has kept it crystal clear since!
Received foam filters, Not Bioscrubber filters
on Jul 3, 2021
If you don't mind getting the original foam filters and not the updated BioScrubber filter, they work like normal. They self start back up if you have a power outtage, no need to prime back up. All ten are working perfectly as new and as long as the intake slots are submerged with water, they are strong enough to pull water the rest of the way up to keep water flowing if you want to do a partial water change and not have to turn them off. Great for fish with high oxygen requirements.
I ordered ten of the Tetra Whisper Internal Aquarium Power Filter with BioScrubber, 20-40 gal. All ten of them had the original foam filters instead of the BioScrubber filters. I had a large shipment of fish showIf you don't mind getting the original foam filters and not the updated BioScrubber filter, they work like normal. They self start back up if you have a power outtage, no need to prime back up. All ten are working perfectly as new and as long as the intake slots are submerged with water, they are strong enough to pull water the rest of the way up to keep water flowing if you want to do a partial water change and not have to turn them off. Great for fish with high oxygen requirements.
I ordered ten of the Tetra Whisper Internal Aquarium Power Filter with BioScrubber, 20-40 gal. All ten of them had the original foam filters instead of the BioScrubber filters. I had a large shipment of fish show up the same day my filters showed up, so I couldn't risk returning them and trying to find ten replacements locally on the same day. I contacted chewy customer service and they could not send me the missing BioScrubbers to complete my order, but wanted me to do a return and reorder. This was not feasible due to my fish needing them immediately. Just bad timing for getting not what I ordered.… more
on Aug 20, 2021
I've had this filter for a few months now and I must say that it has done an AMAZING job at keeping the water in my turtle tank crystal clear. I was a little skeptical when I bought it but over time it has proven to be one of my best purchases ever for my little friends. Happy Turtles, Happy Life!
Decent, VERY quiet, but doesn't stay clean very long.
on Jul 6, 2021
I think it's just a cheaper alternative for smaller tanks, it's definitely very quiet no problems there. But, it doesn't keep the water clean very long we also started noticing bubbles almost like soap but kinda like a foam as well not sure what that's about. Definitely will be looking into another one that will stay clean a bit longer and be a bit more effective. I've seen other say it keeps it clean for quite a while but I've changed the filer and had to clean the whole tank more than three times in one month and, it's only a GALLON fish tank. You'd think a 5 to ten filter would keep always a gallon cleaner than it does.
Good while it lasts
on Aug 11, 2021
I’m on my 4th one of these. They’re quality, fairy eat to clean, and reasonably priced. They don’t last forever, but you can get the filter refills pretty much anywhere and they are worth it for the length of time they do last which for me has been generally about 6months.
on Jul 18, 2021
Chewy offers great prices and fast shipping. The closest pet store to where I live is about 25 minutes away and it's very small so the prices are very steep and she's prices are almost half of what I would pay after driving all that way. They have a bigger selection and very fast shipping it's definitely worth it and I would definitely recommend this site for anything that's shippable!!
Very quiet filter
on Aug 23, 2021
This filter is the best we have found by far. It keeps the water clean and is actually quiet! We ended up replacing all three filters in our 3 aquariums with this filter because it is so quiet.
Works but could be better
on Jun 24, 2021
It does filter but I have found trouble with the way is hangs on the tank and tends to fall off the side of the tank frequently.I have also found it it causes a lot of micro bubbles in the tank if not hanged on at a specific angle but when hanged at said angle and when stays on side of tank it does filter the water well and does it’s job.