Animaux Activated Carbon Charcoal Aquarium Filter Media (500G) with Net Bag Power Aquarium Filter(Biological Filtration for Salt Water and Fresh Water)
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1.PH Neutral 2.Suitalbe for fresh water and sea water tank 3.More than 10 times the abilityto cultvate nitrifying bateria than normal bacteria house 4.Wash it with aquarium water before use, do not use tap or boiled water 5.Do not often change these rings. 6. After six month used, change half of them and use new rings with the rest old rings 6.Ceramic Ring is an essential filter media for every aquarium. 7.It can effectively eliminate odours,
