The Ultramax / Maxikani filter sponges are suitable filter sponges for the Maxikani external filter and for the Ultramax. Aquael offers three different sponges with varying levels of density as the base length for the filter system.

• Sponges with different structures used in the filtration cycle.
• Their surface effect increases with improved pore size.
• Smaller pores provide a larger surface area for beneficial nitrifying microorganisms.
• Help maintain the biological balance in the aquarium.