Carib Sea ACS01791 Aragamax Alive Indo Pacific Reef Sand, 10-Pound, Black, 4 Per Case

Only Caribe's Agar-Alive Live Sands contains not just the broad spectrum of natural marine bacteria found in the ocean, but additional specially selected strains of marine bacteria as well. It compresses new tank cycle time and suppresses the initial ammonia spike. Agar-Alive creates a natural biological balance and makes cycling a new aquarium faster and safer. Live rocks and most invertebrates can be added immediately.