Serenity Aquatics Oxygen Block 20g

vet-n-pet DIRECT Verified independent store

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The Serenity 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 r eplenish the oxygen supply.Replace the block with a new one when it has almost dissolved. This product will also help stabilize pH. SIZE: 20g Show more