Mr Aqua Porous Ceramic Rings Small 20l** Hydor test for proper pH and

test for proper pH and any other parameters required for the type of animals you are keeping

Use once a weekas a natural way to keep your aquarium clean

Please shake bottle before use - very concentrated

For Tanks up to 150 litres

The colour of the product can vary from dark green to dark brown

Mr Aqua Porous Ceramic Rings Small 20l** Hydor test for proper pH andDescription: Mr Aqua Porous Ceramic Rings small have a large porous 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