not particularly good, I doubt it produces the liters it claims per hour! Also, I find it very difficult to get it running again after cleaning it, as the suction is filled with air and the impeller spins without moving water!!

The triangular sponge needs a little trimming so it doesn't interfere with the water entry. The organic material absorbs more than the bags inside.

Very good filter, it cleans the water in no time. I have a 180-liter aquarium, easy to clean. The only thing I didn't like very much, and that's why I gave it four stars, is the noise! It's not silent, it doesn't exactly disturb the world!

I use it in a 120-liter aquarium, it works flawlessly and silently. It cleans very easily without filling the space with water. I recommend it. I have purchased the version with the resistance. The only thing that requires attention is how you insert the middle filters so that it does not cut off the flow at the outlet.

It is awesome and very quiet. The water flow is excellent and the aquarium is cleaned very quickly from cloudiness during water changes (aquarium with substrate at the bottom).

Very good filter and it is odorless. It has plenty of space for mechanical, biological, and chemical cleaning. The only thing I didn't like, however, may have been that it doesn't include the "adapter" for the heater

I installed it a month ago, so I still don't know how the performance will be over time, but so far I am completely satisfied. Solid construction, excellent system for isolating the body of the filter from the pipes (for cleaning purposes), very satisfactory accompanying accessories, easy installation, quiet operation. And a very good price compared to a similar product from a serious competitor.
* Addition: Several months later, it still works perfectly and quietly. And cleaning is a breeze. I highly recommend it.

Highly recommended, reliable, relatively quiet for its size, and excellent filter, just like anything produced by OASE.

I bought it on 09 Sep 2021, it arrived very quickly and I installed it in my aquarium a week later after receiving it, as I was waiting for a lily pipe to arrive as well. One day after installation, I noticed that it was making noise. I contacted the store and the people there initially gave me some advice in case the problem could be fixed. Unfortunately, the problem was not resolved. In a second communication with the store, they told me they would talk to the Oase representative and inform me, which they did.

The problem with the noise was solved, the filter is really good, with very good build quality and it seems to have very good support. The flow rate is very good for my aquarium (60 L), and among the very positive aspects of the filter are also its ease of cleaning, as well as its thermostat. Overall, it is the best I have had so far. I am completely satisfied.