Mantis Bio Spheres – Biological Filter Media (1kg Box)

Mantis Bio Spheres are premium biological filter media that give beneficial bacteria a vast surface area to colonize, driving efficient nitrogen-cycle processing. A must-have for sumps and filters in both reef and freshwater aquariums.

• 1 kg box
• High-porosity spheres for maximum bacterial colonization
• Long-lasting, inert media
• Works in sumps, canister filters, and media reactors

Supported locally in Canada by Fins & Friends.