uxcell XINYOU XY-380 Aquarium Fish Tank Biochemical Sponge Filter, 4-1/2-Inch (1-Pack)

First sponge filter ive used. The fish are happy the price cant be beat.

These filters are great for the beneficial bacteria. I had parasites in my very large tank. I took these out and put them in pond water and left them bubbling while I tested the tank and a few days later once I knew all the meds were gone I put them back in. Im sure I lost beneficial bacteria in my main filter and did do a few water changes at first but within a week everything was normal. I keep 4 of them in 300 gallons. I also took out the love plants when I medicated. Everything turned out great. The parasites they expelled were gross and they even had a few worms that are all gone now. These are handy filters and I recommend.

A set of three I put two in a 80 gallon tank and one in a breeder tank

As described. Can’t use air stone.

Easy assembly, recommend hollowing out the center tube and adding an airstone. Overall great filter for the price.

Works well. I use this in our goldfish pond to help keep the water clear. It really helps keep the water nice. Havent list any fish, so Id say its working

Great sponge filter for my small 2.5 gallon tank. Sponge filter a so underrated, imo, this is the most simple and effective filter type for any aquarium, any size. I keep a small colony of ghost shrimps and aquatic plants in this small tank. The sponge filter acts as a mechanical and biological filter for my small tanks as it kept the water clear and harbored beneficial bacteria. The shrimps like it too as they found to climbed on the filter to feed on algae. I really happy with this filter and I can tell that the inhabitants are also happy as they are thriving. I started out with 5 shrimps and now I have close to 20 shrimps within 3 months. I see the need of a bigger tank and a bigger sponge filter in a very near future.

Absolutely love these filters, I have bought multiple and plan on getting more. They are great for fry tanks. Only downsize to ordering here is that they are an add-on item so if you dont spend more than $25 you cant order them even if you are willing to pay shipping.

Great filter

I bought this think a couple of weeks ago because I was having trouble keeping my tank clear Ive tried everything when I go this sponge I couldnt wait to use it. it was wonderful I love it I would recommend everyone to buy one where I live at they do not sell them in the store