AQUANEAT Aquarium Hamburger Mattenfilter HMF Sponge Filter Fish

DIY Matten filter for aquariums

The HMF – What's That? — Seriously Fish

Hamburger Mattenfilter HMF Sponge Filter Aquarium Fish Tank Fry

DIY Matten filter for aquariums

DIY Matten filter for aquariums

The HMF – What's That? — Seriously Fish

Sponge filter provide both mechanical and bio filtration, also, the air infusion chamber produces minute bubbles which increase the oxygen solubility

AQUANEAT Aquarium Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank (Mini up to 3Gal)

AQUANEAT Aquarium Bio Sponge Filter Breeding Fry

All About Matten Filters Including How To Make One

Sponge filter provide both mechanical and bio filtration, also, the air infusion chamber produces minute bubbles which increase the oxygen solubility

AQUANEAT Double Bio Sponge Filter, Quiet Aquarium Filter with Ceramic Media Balls, for Betta Fry Shrimp Tank with Airline Tubing, Air Pump Valves

Mattenfilter - SWISSTROPICALS

How a HMF (Hamburg matten filter) Works

Mattenfilter - SWISSTROPICALS