Bio-Mate Refillable Media Balls Provides maximum surface area with the greatest possible mix of air and water. Cultivates nitrifying bacteria. Promotes gas exchange, increases dissolved oxygen level and removes harmful gases. Wil...
Unique, flexible media made of environmentally non-toxic EVA. Easy cut to fit any size filter, resists clogging. Different mesh densities can also be used in sequence to meet your filtration needs.
All pads are 19.5" x 24" x 1"...