King British Safe Water Filter Aid For Ponds

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Product Description King British Safe Water for Ponds Helps maintain a healthy environment for fish by removing harmful ammonia & nitrite. Uses 4 types of nitrifying bacteria to na turally oxidise ammonia and nitrite into nitrate. Plus a 5th type of bacteria - Bacillus - which breaks down organic matter in the filter. Effective in a wide range of water conditions including varying pH, hardness, temperature and salinity. For use with tropical, coldwater, and marine fish. Sizes: 250ml, 500ml, 1lt Safety Warning Keep out of the reach of children Show more