Coralife Limewood Mini Airstone for BioCube Protein Skimmer
Replacement Limewood Mini Airstone for the BioCube Protein Skimmer (designed for the 14 and 29 gallon Biocubes). The airstone creates a continually streaming column of bubbles to help the skimmer remove unwanted organic waste from your aquarium.
Easy to use, adds a great value, manufactured in United States
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