NICREW Slim Aquarium Filter Cartridges (12 pcs) with Intake Sponges (4 pcs)

These are perfect for my tank 5 gallon I got on here. The tank is glass, which I love and wouldn’t get plastic. So durability is great. My snails and beta are so happy and keep growing so huge from all the space. There is no noise and the tank does not collect algae but that’s due to my live plants that I have in my tank. These work great if you keep your gravel or sand or whatever base you use super clean. If you don’t keep your substrate clean, you will go through at least 1 of these every 1-2 weeks.

Good product works well for small tanks

Great filters! Perfect size. Keeps my tank clean and my fish happy! Very low noise and super durable.

They work

Keeps the water clear in my 5 gallon tall Beta tank. Coarse sponge can be removed from used one and cleaned in some tank water then place in new filter with carbon. This way you don't lose your beneficial bacteria.

Filters fit perfect. No issues

effective and easy to replace

Great filter at great price