Details
Promotes oxygen gas exchange. Creates a large surface area for the 'beneficial' bacteria to colonise, increasing the break down of harmful Nitrates and Nitrites producing better quallity water for your fish.>Center channel allows the balls to be strung together making cleaning easier.Paddle wheel design breaks water flow helping de-gas and aerate water.Water paddles maximize dissolved oxygen levels.Textured surface maximizes space for beneficial bacteria populations and water retention.Compact size allows for placement into smaller areas.