Fluval AC20 Modular Filter Basket upgrade

Fluval AC20 Modular Filter Basket – Improved Biological & Mechanical FiltrationThis is a custom redesigned filter basket for the Fluval AC20, created to significantly improve filtration efficiency, modularity and ease of maintenance, while keeping full compatibility with the original filter body.🔧 What’s different from the stock Fluval AC20 basket?The original Fluval AC20 basket has limited flexibility and does not allow an optimal separation between mechanical and biological filtration.This redesigned version introduces dedicated compartments, allowing a more logical and efficient filtration layout.🧩 Filtration layout (bottom → top):Bottom compartmentDesigned to hold the original Fluval sponge, acting as a coarse mechanical pre-filter to trap debris and protect the biological media.Middle compartmentSized for filter floss / perlon wool, improving fine mechanical filtration and keeping the upper biological stage cleaner for longer.Top compartmentDedicated to ceramic rings / biologica