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Round Air Stone Discs are great to put at the bottom of your reservoir for aeration. It is designed to add oxygen and circulate nutrition to your hydroponic growing system or aquarium. It extends the life of your nutrient solution to help keep fish & roots healthy, and hence promote plant growth.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.