Mr Aqua Porous Ceramic Rings Medium have a large porus surface area and ideal for canister filters and sumps.** This item is classed as a large, bulky or a heavy item - additional delivery costs apply. Total delivery will be calculated at checkout.
Designed for Bio-Filtration
Houses beneficial bacteria
Massive Surface Area
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.