hygger Small Aquarium Bio Sponge Filter Mini Fish Tank Filter for Breeding Fry Betta Shrimp Tank 2-5 Gallon

I'm not one to leave reviews, unless absolutely necessary. This is my second review in maybe ten years, and this product deserves a review! I'm not a professional, but I have a decent amount of experience with fish/plant aquariums. As of now, I only have a small tank setup and have been experimenting with self sustaining ecosystems, which I have accomplished. I went back to using a filter to enjoy more creatures in my tank and handle the heavier bioload. I've been experimenting with hang on back filters, internal power filters and different sponge filters. I decided to try this filter also on and off for about a year, because of its unique appearance. Here is my experience.. I keep going back to this filter! It pulls, but very gently. The build quality is nice. It's suspended off the substrate, which frees up a lot of space. It keeps my water stable and clear. The fish behave more naturally with this filter also, which I get mixed results with other types of filters. I don't know if it's the setup and combination of the sponge and media, but something about this filter keeps a healthy tank. Cleaning this filter is very easy. Just pour out the media and separator into a container with water from the tank, give the top a firm tap like a ketchup bottle, and the sponge comes out. Squeeze the sponge in the cycled water a couple times then reassemble. There's really no need to share pictures of this product, there's enough of those in the reviews. My only complaint is the suction cups do slowly release from the glass in a couple weeks. I don't know why some companies still have a difficult time supplying reliable suction cups for their equipment.. I'm probably going to make a hanger for this filter in time to replace the suction cups. Suction cups aside, this filter deserves a five star review for its effectiveness, ease of use and appearance!

Please note that this only applies to the one that uses airpump. Electric water pump model should not have this problem. Product has excellent build quality and packaged perfectly. However the product itself does not function as a filter due to the design flaw. The air pump connection is too close to the spout which does not bring enough suction, therefore act more like a regular bubbler. The video is tested with clear tank with no water flow, removed all content from the filter, then added the color to the water to see if any suction is seen. As you can see there is no suction, and in fact the color seems to be traveling upwards. I would also like to point out that I used an adjustable airpump that is rated for a 40 gallon, which is far stronger than what this filter is meant to be. The filter is also empty, which has no obstruction to the flow, yet this product failed to have any filtration capability. This is first time that I am truly disappointed in the Hygger product. Any other products that I purchased have no issues. Since it was not a quality control problem, it makes me worried if they ever test their product before proceeding to the production line.

This 3-in-1 filtration system is definitely worth the hype. It’s been going viral on TikTok lately, but I actually discovered it through Amazon. After using it, I can confidently say—it lives up to the praise. The filter does an excellent job of clearing up the water fast. Honestly, it started working within 10 minutes of setup. My tank looked noticeably clearer almost immediately. It also adds oxygen and uses biological filtration balls, which help keep the water clean and healthy for my fish. I’ve tried a few cheap filters before, and the difference is night and day. This one had a ton of reviews, and now I understand why. It’s powerful, but gentle—the water flow doesn’t stress out my fish or force them to swim harder, which I really appreciate. One small tweak I made: I replaced the black sponge that came with it. It felt a bit too flimsy and wasn’t catching much debris. I swapped it out for an AquaClear sponge, trimmed to fit the original size, and the difference was huge. Better filtration all around. If you’re starting an aquarium or just looking for an affordable, reliable in-tank filter, this is the one. Sure, there are TikTok deals, but I stick with Amazon and I’m glad I did. Five stars from me.

Hi! First time buyer. I was in the market for a low flow filter for a quarantine tank when I found this!! This product is perfect for creatures like bettas, snails, shrimp etc! I love the two in one feature of a filter/bubbler. For low flow I would recommend the Hygger air pump that I also purchased with this filter. It’s small, sticks to the tank & does the job amazingly. In the video it sounds rather loud.. it’s really not, it’s the same vibe as a standard bubbler. I personally enjoy it. Sounds like water trickling🤷🏻‍♀️ The set up is extremely easy. I do want to recommend that you rinse your bio balls before inserting as they are dusty. Also in the instructions it mentions replacing your bio balls every six months… as a bio user I wouldn’t recommend that. Unless your ceramic bio balls have worn down or are breaking into pieces, there really isn't any need to replace them. For new fish owners & bio users.. to clean your bio balls is best done during a water change. Take some of the water you removed from your tank and swish the bio balls around in it. Don't scrub or wipe your bio balls as this can remove the bacteria/kill off your beneficial bacteria colony. Blah blah blah sorry I just really love fish & all the intricacies that come along with them♥️ All in all I would highly recommend this brand/product for anyone looking for a low flow filter from quarantine tanks to bio beginners. Heck I might even upgrade the filter in my main tank with this guy!🤩

I like the compact design of this sponge filter, it has a very small footprint taking up very little space in the aquarium. It works pretty well for filtration in a nano tank and could probably be good up to 10 gallons if the tank is not overstocked with too many fish or heavy-bioload fish. Some things that could be improved: There needs to be an easier way to access the sponge from the bottom for cleaning/maintenance. The current design makes it such that you have to take out all the filter media above, the division plate, and then you can finally access the sponge at the bottom - then good luck putting everything back as-is after cleaning. The other issue I had is with the suction cups. They work well for about 1-2 days, then it would lose suction and I would have to stick them back on to the tank glass, over and over again. I got fed up with it and decided to ditch the suction cups and add some kind of DIY magnetic attachment system. Research told me that regular magnets are not safe as they can deteriorate, rust and leech into the aquarium water. Only magnets which are fully-sealed, enclosed in rubber or plastic are safe for aquarium use. With that, I discovered "Sew-in Magnets" / "Sewing Magnets" - magnets designed as fully waterproof magnetic clasps for sewing into coats or bags. It was perfect for modifying the sponge filter, but I needed 2 pairs of magnets to hold the filter in place. If you are struggling with the included suction cups, this is a possible fix for you as well. Other than those issues, I really like this compact sponge filter.

I use 2 of the 2-5 gallon versions in my 2.5 gallon shrimp tanks. I used to use one of the cheap usb air pumps that you see everywhere and it worked okay. I switched over to a Tetra Whisper 10-30 gallon air pump and hooked it up to both filters. It works better. If you are not getting great flow then maybe try a stronger air pump. It definitely filters but does not have the best flow. I think they're pretty good for a 2.5 gallon tank but I would only use it in a 5 gallon if it has low bio load or if you have a stronger air pump. The size is amazing considering you get a bio media compartment. It's very low profile. My only real complaint is the suction cups. The filter loses suction every week or so. I bought these with the intent to have it hidden in a cramped spot of an already tiny tank. It gets very annoying having to reset the suction cups. Pretty much only get this if you need something very low profile and in a tank that doesn't need high filtration.

I got three of these....they just didn't work. The air would not run through the unit on any of them... DOA. It looks like a great idea and size but poorly manufactured.

THIS THING IS A BEAST. IT JUST KEEPS ON GOING, I'VE TRIED CLOGGING IT AND IT DIDN'T FAZE IT AT ALL.

Funciona perfecto para peceras de 10 litros

I wouldn't use this as a primary filter but it's good for airflow and a little extra filtration doesn't hurt.

Working great love it

Malísimo, primero no explica que debes comprar adicional una bomba de aire y aún cuando la compras el conector de la manguera está tapado por lo que no permite el paso de aire por ningún espacio. Tiene error de diseño o algo similar dado que es imposible qué funcione

El producto se ve de buena calidad y bastante práctico. Sin embargo, el que yo recibí tenía una fuga por donde se salían las burbujas y por lo tanto el filtro no cumplía su función.