Nano and pico tanks need mechanical and biological filtration just like larger setups, but rarely have room for anything beyond the smallest, most minimal footprint. The Sicce Micron internal filter line covers exactly that end of the scale, in two sizes with a replacement carbon cartridge.
Why a Minimal Internal Filter for Small Tanks
A nano or pico tank's whole appeal is its small footprint, and equipment that takes up disproportionate space defeats the purpose. Micron filters keep the mechanical and biological filtration basics covered without dominating the tank's interior.
Choosing a Size
- NANO MICRON — 53 GPH — Sicce's smallest internal filter, sized for nano and pico tanks needing basic mechanical and biological filtration in a minimal footprint.
- MICRON Internal Filter — 65 GPH — steps up flow from the NANO MICRON, still sized for small to medium tanks wanting compact, internal filtration.
Keeping It Running
The MICRON Carbon Cartridge (2pc) is the direct replacement chemical filtration media for the MICRON line, restoring chemical filtration once the original media is spent.
The Sicce Micron internal filter line is available at Marine Concept Supply — order online or pick up at our shop in Wheeling, IL. Shop NANO MICRON, MICRON, or the Carbon Cartridge, and browse more aquarium filtration.

