Aqua One Block O2 Plus Oxygen 20g (95000)

O2 Plus Blocks slowly dissolve to replenish the oxygen and stabilise the pH in your aquarium water, maintaining a healthy environment for your fish. 

Replenish the Oxygen block when the original has dissolved.
Suitable for Goldfish & Tropical
Suitable for Aquariums and Ponds
Treats between 40 - 60 litres