Reef Casa Algae Block

Starve algae of its food source: phosphate ! Prevents and manages algae in aquariums.

Control and lower phosphate in your reef tank. Good for 12 gallons of saltwater, change every 2 weeks for best results.

• Conveniently pre measured
• Sealed aquarium bag
• Proprietary phosphate removing blend
• Binds po4 and silicates
• Virgin material