This Elemental Solutions O2 disc accelerates oxygen replenishment
Increases water circulation when used with a high-output air pump
The 4-inch o2 disc is compatible with 3/16-inch-id tubing
This Elemental Solutions o2 disc accelerates oxygen replenishment and increases water circulation when used with a high-output air pump. The 4-inch o2 disc is compatible with 3/16-inch-id tubing.
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