USB Single Sponge Filter, Small Aquarium Filter with Adjustable Hanging Clip and Suction Cup, Duckbill Outlet, Rain Pipe Outlet, Extra Spare Sponge

Perfect for a 5-gallon! I really like that there is not a separate compressor. It's very quiet; the water splashing from the "rain" tube is the loudest part. It aerates the water well. I clean out the sponge every 3-4 weeks and I can tell when it needs cleaning because the rain turns into a sprinkle. Easy to set up and use, and bonus, the frogs like to sit on it (or under it). I chose this brand because Hygger is well known, and I'm not disappointed.

Update: it was user error. I realized after re-reading everything several times that I needed to squish the living daylights out of the sponge when I cleaned it. It's a beginner's error, as I thought I needed to be gentle with it. Once everything was clean, everything started flowing so nicely! However, still not full stars because the sponge does seem to be getting clogged/full rather quickly, after 2-3 days the water flow is starting to diminish already. Otherwise, it's great price point for a sponge that has its own pump included, plus the biomedia and flexibility to add to the container (I added a small amount of charcoal, for example, and previously seeded with old media). The flexibility and price point is really great for someone beginning the hobby! This was the original review: I'm so sad and frustrated. At just 4 days past the return period, I cannot get this filter to flow normally again. I cleaned the sponge at least 1x a week inside and outside, and scrubbed the intake. 2x within this month, I disassembled the pipes and scrubbed with a toothbrush and straw cleaning brush, and made sure to clean the little individual outlet holes of the "rain" attachment. Last night was the 2nd time I cleaned it this way, and for good measure I also opened the media recepticle and made sure it wasn't clogged with anything, plus scrubbed the intake from within that area. This filter has been steadily declining to now only outputting a dribble of water, and now I'm afraid my nitrogen cycle is crashing and my fish look stressed. There is no way to contact the seller after the 30 day period to try to troubleshoot, I cannot take the filter apart any further or I would void the warranty, so now I'm left to writing this review.

Works well. Would be nice to have a bit more water movement/output but it does the job. Nice small size with good filtration. VERY QUIET which is a huge plus. I’m not a fan of air pump sponge filters (even though they work well) due to the air pump noise. This one makes zero noise!

After purchasing the two-filter model, it looked monstrous in my little ten-gallon tank, so I went with a single-filter model. Big mistake. No suction, and the stream of water will die out to a bubbler. I have to manually squeeze the sponge to activate it again, and within a couple of days, it reverts back. Do not recommend.

This filter work very well. The pump makes almost no noise, all you hear is the water flow. It's definitely worth the money. It's easy to setup and clean. My fish love it and so do I

Updated on 11/3/25: After using for a month or so, I noticed the water outlet (I’m using the wand) has decreased to one little stream. So I took the system out. Removed the sponge and rinsed in a bucket of tank water. Then used a small bottle brush to clean the outlet pipe and every hole in the rainfall wand. Reassembled and installed. Great, works again. A few days later it’s back to using one hole again. Took the system out again and repeated the cleaning. Now it’s in a tiny 6 gallon tank with the single outlet. Still puny water flow coming out. Such a disappointment from Hygger. (Second crappy item, the other is a mini bubbler that’s trash. No output there either.) love this sponge filter! This is perfect for my 20 gallon long aquarium. My Singapore Flower Shrimp sits on it to filter feed. The rain flow arm creates a nice gentle water flow. I’ll buy another one. (If you want heavy water agitation, select a different model.)

Super duper filter

Sponge seems to always need to be rinsed out as the flow slows very quickly

Items seems to work ok . Time will tell . Pieces missing but was able to rig up tube plug