Fluval 3 Internal, Does It Take Biomax?

[SilverHatchet]

Can Fluval 3 Internal filter take Biomax rings instead of standard foam?

Thanks.

 

[pna]

Can Fluval 3 Internal filter take Biomax rings instead of standard foam?

Thanks.

This is the old model fluval filter, and I believe there is a small area inside where extra media can be added, however the new line of fluval internal filters are called U1, U2, U3 and U4 - my U4 has and quite a large separate container inside and came supplied with biofilter pellets.