Eshopps Bio-Lux media 4 pack

Square and spiral sturcture will increase 3 more times of filter area without space wastage. Up to 80% water absorption rate, which means there is much porous space for bacteria development and maximize filter efficiency For both Fresh and Marine water. Mesh Protector on each piece of media will lend to its safe shipment and increase the 3D spatial capacity for bacterial development. Specifications   Dimensions 6 3/8" x 1 1/2" per stack. (4) per box Material - Ceramic PH 8.0 < PH Surface Area 3,918 sq meter/liter   Recommended Amounts of Bio-Lux: 50 Gallons: 4-8 Bio-Lux (1-2) 4 Piece Boxs 75 Gallons: 8-12 Bio-Lux (2-3) 4 Piece Boxs 100 Gallons: 12-16 Bio-Lux (3-4) 4 Piece Boxs 200 Gallons: 16-24 Bio-Lux (4-6) 4 Piece Boxs 300 Gallons: 24-32 Bio-Lux (6-8) 4 Piece Boxs