hygger Aquarium Double Sponge Filter, Comes with 2 Spare Sponges (S)

I have one of these in each of two of my aquariums. I am impressed by their functionality and cleaning properties. They were simple to set up and install, and are working perfectly well. Time will tell how well they hold up to constant use, but so far, I am impressed after two weeks of operation. Hygger makes very good quality aquarium products.

Seems pretty good so far. Sponge filters provide the best biological filtration for aquariums. My main concern was the air discharge. This is for a tank in my living room and I didn't want the sound of large bubbles- was it free flowing and loud or did it produce bubbles like an air stone would. Turns out it's like an air stone. Very quiet. It comes with extra sponges. Not sure if I'll ever need them but it's nice to have in case I do...

Perfect filter for my 29 gallon tank. I still use a HOB with it, but I like this a lot. It was inexpensive, and easy to set up. It functions exactly like I need it to with very little noise, or water agitation, for a betta. I'm not sure why some people didn't leave it goid reviews. Maybe they aren't using it correctly, or it's too small for their tanks, or possibly because their fish have large bio loads, like goldfish, or overstocked tanks. I like it a lot.

I loved mine and I’m about to buy another because they work great. However when cleaning mine must have gotten damaged because it no longer shoots air out maybe a bubble or two a minute leaks out the top where it use to be a constant stream. I also want to add I have a 15 gallon cube full of shrimp and snails and these filters require almost every 2 month cleanings. The sponges need to be squeezed out or you will notice lack of bubbling because not enough water is passing through

This review includes tips for the extra sponges!!! I have had 3 of these for over a year and highly recommend them. I have all size smalls and use them on 5 gal, 8gal, 10gal tanks filled with mostly shrimp and snails and a few fish. They work great and they require little to no maintenance. They easily come apart if you do need to clean or maintain and there are no moving pieces to worry about breaking with wear and tear. They come with the bio balls and an extra set of sponges. They don't require a lot of air, so I'm able to use a splitter on each air pump to also power bubblers. They are completely quiet depending on what level you place the output spout compared to water level. Shrimp and snails love them because they are safe havens to rest on full of yummy things to eat. They cause little to no motion of the water if you have inhabitants that like things calm. And they there is zero risk of having a filter accidentally suck up a baby of any species. The black sponge blends in well with the background and the only part that actually sticks up and shows out of the tank is the tiny clear airline hose. In over a year. I've yet to come anywhere close to needing to replace the sponges, however they have come in handy: 1. When cycling a new aquarium, I bought another of these and swapped out one of the towers (balls and foam) from an existing aquarium with a new one. I did this with two different tanks. This had little to no impact on the established tanks since I only took half of the filter media. It got the new tank to cycle almost immediately. 2. To keep from vacuuming up tiny fish fry during water changes, I use one of the spare sponges on the end of the siphon hose (1/2"). It won't suction up debris with it on, but it works great for water changes in a heavily planted tank where I let the plants handle the debris. 3. (Sort of a spin off of 1 and 2). If you have multiple tanks and are worried about cross contamination, store one of the extra sponges in the back of the tank. Use this if you need to spin off an emergency bin for any reason, and/or when changing water on that specific tank.

Works great. Little rough getting the tubing on but it works perfectly. Have one in both my 40gal and 13gal. Very easy to set up. Suction cups aren’t the best, it holds but moves around a bit.

You need a lot of air in order for this filter to work half decent . I bought 3 in the past 6 months there best used to filter a fry tank or nano tank. Funny, but with the same amount of pressure on a splitter, one filter clear works better than the other or more air seems to flow better

My fish love it. Water is crystal clear. Sponges are full of mulm which feeds the biofilter and my shrimp. Suggestion: Get a stronger air pump that it recommends. I've got an 8watt.