This filtration sponge is ideal for use with Serafil Bioactive 130 and 130+UV filters. Designed to promote healthy water recycling in your aquarium, this sponge provides high-quality filtration, eliminating harmful substances and keeping the water clean and clear.

• Compatible with Serafil Bioactive 130 and 130+UV filter models.
• Promotes the growth of beneficial bacteria for biological filtration.
• Includes two pieces for effective and long-lasting use.