I have three of these filters and I really like them. I have one for 5.5 gallons with a female rooster, 4 amano shrimp and 2 mystery snails. I have one in a 6 gallon Fluval Edge instead of the original HOB, it has a male swimming bantams. And I use one in addition to my Fluval C2 filter in my 10 gallon planting aquarium which has a female betta, 5 otocinclus, 4 pygmy char and 3 mystery snails. All three filters work well and I love the atomizer. However, this sprinkler has a tendency to break right where it attaches to the black plastic arch. Therefore, be careful when adjusting the jet angle of the sprayer boom. That's why I give it 4 stars instead of 5. You can solve this problem in several ways. In any case, once you know where to point the atomizer, you shouldn't have any problems! This is a great filter for any 2.5 gallon to 10 gallon aquarium if you have a low biological load, or as an additional filter in combination with another. If you are putting this in a 10 gallon tank I would recommend using two of these to avoid dead flow areas in the tank.
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