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What Size tank can I use this cotton sponge filter for?
This cotton sponge filter will work best in tanks up to 10.5 gallons when used singly. If you own a larger tank, you can purchase two or more of these sponge filters and place them on different sides of the tank. Considering their small size, you can easily hide these filters behind plants and other underwater decor.
Why should I use an air pump with this filter and not a water pump?
We recommend the air pump method as it is much easier for beginner aquarium keepers to set up. You buy this, hook it up to an airline tubing and an air pump...and go. The air pump is noiseless and won't disturb your fish. It can be used in a "hospital tank", breeding or rearing tank, or as a tank for fish who prefer a slower current flow such as Betta or Discus.
Can I use this sponge filter in conjunction with a HOB (Hang on the back) filter?
Yes. Even if you already have another filter in your tank, you can use the sponge filter at the same time to upkeep your tropical fish tank. Your best results will be achieved by placing the sponge filter on one side and the hang-on power filter, or any other filter, on the opposite side.
Can I place the filter straight into my aquarium?
It is recommended to clean the tank and do the regular weekly water change before installing this filter.
Recommendation:
Replace this cotton every 5 to 6 months to ensure proper filtration.
Steps to Use:
- 1. First of all, insert the plastic tube in the airline tubing (sold separately).
- 2. Insert one end of the airline tubing into the sponge filter.
- 3. Insert the other end of the airline tubing to the air pump. Now your device is ready to work.
Gentle Current
Ideal for nursery and quarantine tanks
Can be used in a power outage
Joan
2025-08-25 16:29:34
This filter is small but very powerful. It's lightweight, easy to use and clean. Very affordable. Great product.
Preston
2025-08-09 12:43:45
some of the reviews say too big but mine was the right size and it works good too love it and will be getting more for my other tanks
Michael Quade
2025-08-08 18:00:06
This is my second purchase of this sponge filter for another aquarium upgrade. Couldn't be happier with the performance and ease of cleaning. I don't use a bubbler, instead I've attached the clear plastic pipe to a powerhead inlet which provides much better circulation. My tank remains clean and with minimal nitrate levels. I'm not entirely sure how an air pump would work out, as there is no airstone to provide smaller bubbles. Powerhead setup works well, however.
PolarXpress
2025-07-10 13:35:04
The media could not be loaded.
Brandon Wooton
2025-07-02 12:54:52
Poor design and no hose comes with it.
Psychick
2025-06-26 18:56:40
Really great overall!! Looked up tutorial on how to set it up and it was very easy.Pros: cleaned the water in my 2 gallon tank in about 7 minutes!! It's very simple and not hard to figure out at all. I'm very happy!Cons: it didn't come with a water pump which I wasn't expecting, but I already had one from another filter. Also, the sounds of the bubbles coming to the top and popping is noisier than expected, but my pump allows me to control the amount of air, so it didn't bother me. It also bothers the top of the water a lot which stressed out my beta, but I turned the pressure enough to where he was happy.Unusual: it felt quite heavy in my hands, probably the weight of two average phones, but it wouldn't stay underwater!! I fiddled around with it in the water enough when I got it under a large amount of rocks.Overall a great product and great purchase!! Wasn't exactly what I expected and struggled a little, but great!!
Frugalman
2025-06-12 18:27:20
Very nice small sponge filter for a 10 gallon aquarium. Very easy install and good value. It was easy to modify by adding an air stone. An air stone makes the bubbles small which makes for a quieter filter. The downside is less surface agitation and oxygen. But there are options to overcome that problem.
Mary Paris-Gresham
2025-06-07 12:19:35
This item works very well, it’s keeping my tank clear of unnecessary debris. I haven’t had to clean it yet, but I don’t think I’ll have problem and it seems it won’t be necessary to replace often. I also have a 70 gallon tank that I am considering using the larger sponge filters for.
Eira Carrigan
2025-05-17 15:17:44
This filter is great! I was running a big 3 filter before, but I found my tank getting algae blooms often. Switched to this, and I have had no issues at all. Betta likes it better, too.Highly recommend for beta tanks.
ANDRE jean francois
2025-03-22 19:24:22
il me fallait un tout petit exhausteur pour mon 12lil est parfaitje recommande
Gianmario
2025-03-21 12:00:18
Sto cercando un filtro per il mio piccolo acquario, e ho optato per questo.Nell'annuncio non viene descritto che mancano pezzi per far funzionare il tutto. Annuncio tradotto male e inutilizzabile da solo. Per non farci mancare niente la scatola (del prodotto non quella di amazon) era aperta... Io non so come lavorate... Sotto zero stelle
AWSAMS
2025-02-15 15:17:53
Dit filtertje met luchtbubbels werkt alleen als je hem aansluit op een luchtpompje. Het wordt op dezelfde manier bevestigd als een luchtsteentje en heeft als voordeel dat het tevens filtert. Jammer dat niet niet duidelijk wordt vermeld bij de product details.
Jennifer
2025-02-02 10:49:47
Great for our little 20l tank in our classroom keeps our one little fish very happy and clean. I added an air pump to give it alittle extra kick but it does good job on its own. Would definitely work great for the little single beta tanks
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