5cm Ball Air Stone With Metal Connector - 5 Pack Shrimp Food Tannin Release:High tannin output helps

Tannin Release:High tannin output helps soften water and create rich blackwater conditions

Crystal-Clear Tubing:4 m of flexible

Designed to look like a relic from a forgotten world

Some are made using diluted resin mixtures containing harmful chemicals that can leach into water and endanger aquarium inhabitants

Its ergonomic design offers a comfortable grip

5cm Ball Air Stone With Metal Connector - 5 Pack Shrimp Food Tannin Release:High tannin output helpsThe Castle Dawn Aquatics 5 cm Ball Air stone is built for long lasting, high efficiency oxygenation in aquariums, deep water culture (DWC) systems, and outdoor fish ponds. Designed with a durable mineral based body and a metal connector, this airstone outperforms plastic connector alternatives by offering superior strength, leak resistance, and a longer service life. With a jetting volume of 5 L min, it produces a rich flow of medium sized bubbles,