Denitrification Catalyst for Nano-Tech Anaerobic-Block (5 pcs) - Maxspect

For use with Maxspect Nano-Tech Anaerobic-Blocks to foster the growth of anaerobic heterotrophic bacteria in your aquarium. 

Recommended Use:

Stack two Anaerobic-Blocks horizontally directly in sump, placing a Denitrification Catalyst between the two blocks. The Denitrification Catalyst should be replaced every 2 months, while the blocks themselves will need to be cleaned or replaced roughly every 6 months.

Specifications

• Package Contents - 5 Anaerobic Catalyst pieces
• Maintenance - Replace every 2 months
• Requires two Maxspect Anaerobic-Blocks for use