AQUA ONE Block O2 Plus Oxygen 20g
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