JBJ Square Bio Ring Medium 1.5L

3D nanoscale structure and fine porosity allows bacteria to cultivate easily.

Rich content and constant release of mineral elements K, Fe, Na, Ca, Mg, Zn and Cu.

Maintains natural balance of water.

Physical features

• Lightweight
• Great permeability
• Good adsorption

Square design maximizes filling in filter sump.

Suitable for Fresh and Salt water.