Haqos - Filter Media - BIO BALL

.Provides the maximum surface area and the greatest possible mix of air and water.
.Promotes gas exchange and increases oxygen level.
.Will not clog with organic matter.
.Totally insert and non-leaching.
.Safe for use in fresh or saltwater aquariums.
.Cultivates nitrifying bacteria.
.Use in biological filters and gas exchange reactors.
.Available 25mm and 35mm in diameter size.
.1 Litre packing