I thought I had kept my new aquarium clean since I only fed my betta the pellets and only a small snack of flakes. In a month, the water was transparent and not smelly but the Aqueon filter was dirty. I then decided to see what was going on and removed the fish to do a partial water replacement along with the removal of ornaments and live plants. When I took out the ornaments and pebbles I was surprised by the amount of sediment accumulated at the bottom and the cloudiness of the water. I am glad I did not listen to suggestions to just replace the filter and a percentage of the water. I let the sediment settle down and used the siphon to remove it. The Aqueon siphon removed it all and the water left was clean. I then added the necessary water (prepared at aquarium temperature). No more flakes until I can turn off the filter to avoid the flakes being swirled around ending up at the bottom. No wonder my betta rushed from one flake to the other to avoid being swallowed under the current. In short, the cartridge did its job but one has to watch what "dives" into the bottom of the tank that the filter cannot catch.Read full review
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
My second time ordering these on EBay! The pet store is way too expensive! These are easy to use, last between 4-6 weeks!
Verified purchase: Yes | Condition: New
Easy to use filters keep fishy happy... Self contained - just rinse to remove any dust and pop into the filter holder. Replace per instructions.
Verified purchase: Yes | Condition: New
They are easy to use and can be reused just by rinsing it under cool water.
Verified purchase: Yes | Condition: New
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