Mr Aqua Porous Ceramic Rings 15mm 1l

Mr Aqua's range of highly porous ceramic rings is an ideal filter medium for biological filtration. With surface area up to 500m2 per litre it's ideal for the cultivation of beneficial bacteria to aid in the break down of waste produced by fish kept in an aquarium. The porous rings can be used in both fresh & saltwater aquariums. Will not affect pH levels. Quantity is 1 litre and they are medium in size of 15mm x 15mm. Mr Aqua Porous Ceramic Rings: 1 Litre Ring Size: Medium 15mm x 15mm Up to 500m2 per litre Can be used in any Filter For Fresh & Salt Water