Replacement Coarse (Blue) Filter Sponge for Aquatop CF-400UV
This replacement coarse filter sponge is designed specifically for the Aquatop CF-400UV aquarium filter model. It provides effective mechanical filtration to remove large particles and debris from the water, helping maintain a clean and healthy environment for fish and aquatic life.
Product Specifications
| Feature | Detail |
|---|---|
| Filter Type | Coarse Filter Sponge |
| Color | Blue |
| Compatibility | Aquatop CF-400UV |
| Material | High-density sponge |
FAQ
Is this sponge compatible with other Aquatop filter models?
This sponge is specifically designed for the Aquatop CF-400UV model. Compatibility with other models is not guaranteed.
How often should I replace the filter sponge?
The sponge should be cleaned regularly and replaced every 3 to 6 months depending on usage and water conditions.
Can I use this sponge with a saltwater aquarium?
Yes, this coarse sponge is suitable for both freshwater and saltwater aquariums.

Joan Langdon –
The sponge fits perfectly into my CF-400UV filter. It captures large debris well and maintains good water flow. Easy to clean and has not broken after several months of use.
William Burgess –
Works well with my saltwater tank. The blue color is visible and helps me monitor the filter’s condition. I clean it weekly and it stays effective.
Lily Duncan –
Great replacement for my old sponge. It’s durable and keeps the water clear. No leaks or issues during installation or use.