Denitrification Catalyst for Maxspect Anaerobic Blocks – Pack of 5

Keep your aquarium’s nitrate levels in check with this 5-pack of Denitrification Catalyst refills, designed specifically for use with Maxspect Anaerobic Bio Blocks. Each catalyst unit supports up to 2 months of enhanced bacterial activity, promoting efficient nitrate reduction in low-oxygen zones within your filtration system.

Ideal for marine and freshwater setups, this pack provides up to 10 months of continuous support for a healthy, balanced aquatic environment.

Key Features:

• Designed for use with Maxspect Anaerobic Bio Blocks
• Stimulates denitrifying bacteria for effective nitrate reduction
• Each catalyst lasts approximately 2 months
• 5-pack offers up to 10 months of coverage
• Supports long-term water quality and biological filtration