ITEM NAME:House Ball Bio Filtration Description: Function: The bacteria can exert high efficiency in the filter. The pore structure can be a good breeding bed for nitrifying bacteria, creating good water quality and reducing the frequency of water changes. The bacteria house emits FAR infrared rays allowing more oxygen to be dissolved in the water. PH Neutral. Great help to restore the natural water quality, and provide the most suitable living environment for your fishes. Great for any freshwater or saltwater tank or mini-reef aquarium. The 10 in 1 filter material ratio is randomly assigned, and individual combinations will have uneven material. Package Includes: 500g Aquarium Bio Balls SKU: DMO0012285364024793.500g Aquarium Bio Balls. The bacteria house emits FAR infrared rays allowing more oxygen to be dissolved in the water. People always bought together with. SKU: DMO0012285364024793.