Bacteria House Premium SPIRAL Bio Rod

Surface area 1496㎡/L Size 45×1650mm Neutral 7.0<pH<7.5 Advantages of Spiral Structure * To Filter More Efficiently, Spiral grooves will enhance balance of Aerobic and Anaerobic bacteria and increase filtration surface area. * To Make Fish Healthier, Structure will enhance the release of elements Fe, Cu, Mn, Zn, I, Se, which fish need for growth. At the same time, it makes the best use of far infrared to promote fish metabolism. * Each pc is packed with plastic mesh to strengthen the Spiral Rod and also provide extra filtration surface area. * Suitable for fresh water and salt water