Description

• Quality black corundum higher density stone
• Creates finer bubbles for increased aeration efficiency with no increase in pressure
• Sucker clips for airline available separately

The ALIEN®️ black series air stone is made of quality Black Corundum Stone which is sintered at 1500 Degrees Celsius and is of a higher density and quality than green, blue or even white corundum. It is a relatively small stone at 50mm but punches above its weight by using the air more efficiently creating finer bubbles for increased aeration with no increase in pressure.