Fluval AC50 BioFoam Filter Insert – Blue
Bio-Foam removes particles and debris from aquarium water for effective mechanical filtration. It also serves double duty as a powerful biological media thanks to its ultra dense 30PPI construction, which provides an ideal environment for beneficial bacteria to establish and thrive.
Product Specifications
| Feature | Detail |
|---|---|
| Filter Type | BioFoam |
| Filter Insert Compatibility | Fluval AC50 |
| Material | High-density foam |
| Biological Media Density | 30PPI |
| Color | Blue |
FAQ
What is the main function of the BioFoam filter insert?
The BioFoam filter insert provides mechanical filtration by removing particles and debris from aquarium water. It also acts as biological media due to its dense 30PPI structure, supporting the growth of beneficial bacteria.
Is this filter insert compatible with other Fluval models?
This insert is specifically designed for the Fluval AC50 filter and is not compatible with other models.
How does the 30PPI construction benefit the aquarium?
The 30PPI (pores per inch) construction offers a high surface area for beneficial bacteria to colonize, enhancing biological filtration and helping maintain water quality.

Gordon Robertson –
The BioFoam insert fits perfectly into my Fluval AC50. It’s easy to install and has noticeably improved water clarity. The blue color is subtle and doesn’t distract from the tank. I’ve seen a reduction in algae growth after a few weeks, which I attribute to better biological filtration.
Diane Mitchell –
Works well with my established tank. The mechanical filtration is effective, and the biological media helps maintain stable ammonia and nitrite levels. I changed it every 3 months as recommended by the manual.
Theresa Walsh –
I’ve used this insert for over six months now. The water stays cleaner, and the filter performs consistently. The foam doesn’t degrade quickly and holds up well under daily use.