Ultra Clear Winter Blend Cold Water Bacteria 32 oz - Premium Aquarium Cleaner for Fish Tanks, Ponds & Water Features - Safe & Effective Water Treatment Solution

The UltraClear Winter Blend is specifically formulated for fall-winter-spring treatment of your pond. Its probiotic formulation of select beneficial bacteria ensures your pond has the required bacteria to maintain a clean pond & healthy fish during the colder months. Start using when water temperature falls below 55 degrees F. Use in ponds with water temperature down to 35 F. Reduces Ionized Ammonia & toxic Un-Ionized Ammonia. Reduces build-up of material from decayed aquatic vegetation, leaves, grass, excess food & fish waste. Provides ongoing biological activity as water cools down. Will sustain surface freezing. 100% biological (NO CHEMICALS). Safe for fish, all aquatic life, wildlife & pets. Reduces spring clean-up. Effective for FALL prep.