Hygger Invisible Aquarium Air Stone - 80mm Mushrooms The dorsal fin also has

The dorsal fin also has streaks of black

Biofiltration impact: Will not affect biofiltration

External box dimensions: 8 x 3 x 6 inches

Cleans even the most stubborn coralline algae

Hygger Invisible Aquarium Air Stone - 80mm Mushrooms The dorsal fin also hasHygger Invisible Aquarium Air Stone 80mm The Hygger Invisible Aquarium Air Stone 80mm is a large low profile aquarium air stone kit designed to add broad bubble coverage while staying visually subtle in the aquarium. Its clear acrylic body, EVA aeration surface, and weighted design make it useful for freshwater, saltwater, reef, hydroponic, aquaculture, and small pond applications where steady aeration and a clean look are both important. Hygger 80mm