• The most powerful natural cleaner: Effectively eliminates green and brown algae in the aquarium. • Completely safe: Does not eat live plants and does not harm fish or shrimp. • Beautiful and distinctive appearance: Characterized by its beautiful lines resembling a zebra. • Unique feature: Does not reproduce in freshwater, meaning it will never infest your tank. • Quantity available: Limited quantity, 5 pieces • Price: 17 SAR per piece.