Aquarium Filter Sponge

Aquarium Filter Sponge is ideal for use to create a HMF Filter (Hamburg Matten Filter). These filters have become mainstay amongst many fish and shrimp enthusiasts worldwide.

• Suitable for using in freshwater and marine water.
• Easily cut to any size as required.
• The large surface efficiently allows cultivation of nitrifying bacteria for biological filtration.
• Easily cleaned and used over and over.

A Hamburg Matten Filter (HMF) is a type of aquarium filter that uses an air pump to move water through a sponge filter foam. The filter foam provides a large surface area for bacteria to grow, which is beneficial for shrimp tanks. HMFs are popular with German shrimp breeders because they are inexpensive and efficient.

HMF Filters are space saving, non leaking and supremely efficient

Size(cm)- 45 x 45 x 5