In a 40lt aquarium, very strong flow and satisfactory filtration. The first few days the propeller made a strange noise. After a month it settled down.

Very good, it cleaned the aquarium immediately compared to the previous one. We will see how long this one lasts.

Very good filter, it keeps the aquarium clean for a long time.
The downside is that it is a bit noisier than I expected.

7 months of operation. Amazing machine in a 30-liter aquarium, crystal clear water. I divided the canister in two with the carbon and put half carbon, half porous material... From the first month there was an issue, the impeller was rattling and at night it was particularly noisy. I found a hack: the impeller can be unclipped and I reattached it simply wedged with a small piece of mesh sponge and now it's quieter than ever.

Remarkable filter. In an aquarium with goldfish (very dirty fish) it does an amazing job.

I used it in a 54 lt aquarium. It’s the second day of use so I won’t comment on its effectiveness yet. The right size so it doesn’t take up much space and completely silent.

Coming from a filter of the same philosophy, I can say that this particular filter is VFM.. cheap in price and very powerful. The aquarium stays with crystal clear water for much longer and the water flow is enough to keep the fish happy! It also has the ability to adjust the intensity of the water output!

Used in a 120-liter aquarium with goldfish for over 1 year. It did an amazing job with strong flow and was replaced with a larger one due to the intense waste produced by these specific fish. It worked flawlessly with plenty of loaded biological material.

Very good, I put two of the same natural ones in a 600-liter aquarium with six large water turtles. It really does what the company promises. In short, I am completely satisfied and highly recommend it.

Do not bother buying more expensive filters that ultimately do not work at all and have a reduced flow. This filter does its job perfectly, I have had it for 5 years and it has tremendous power

Very accurate!!
It makes a little noise, like other similar ones...
It is powerful, does the job, and cleans very easily.

After about 6 months of use in 60 liters, we have to say that it does its job. I have achieved a crystal clear aquarium many times. The sponge holds a lot of dirt (to the point where it shrinks). However, mine seems to have a defect and occasionally you hear the propeller playing. In this case, I put in and take out the plug as many times as necessary until it starts without making any noise.

One downside is that it only takes water from the bottom, so in an aquarium with "mud" and plants, it gets clogged very quickly.

If I were to buy again, I would definitely choose a slightly more expensive one with better build quality