The Serenity slow release oxygen block releases oxygen and also keeps your pH stable.
Oxygen Block
The active oxygen block will dissolve slowly in water and release ingredients that will help maintain a healthy environment for your fish.
As the block dissolves it will replenish the oxygen supply.
Replace the block with a new one when it has almost dissolved.
This product will also help stabilise pH.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
