Maxspect Nano-Tech Bio-Blocks, 4 x 4 x 1 in, 2 Pack

Maxspect Nano-Tech Bio-Blocks are made from a dense arrangement of small ceramic spheres, giving a very high surface area for beneficial bacteria. They help remove ammonia and nitrite and work in fresh and saltwater systems.

• Quantity: 2 blocks
• Size: 4 x 4 x 1 in each
• Ceramic media with ultra-high surface area
• Works in aquariums and ponds
• Suits sumps, reactors, trickle filters and wet/dry filters

Rinse in tank water before use and avoid tap water.