Keep your beautiful betta swimming in health and happiness with Activ-Betta Bio-Activ Live Aqueous Solution Betta Water. This is a true living solution to your water-change woes that’s rich in denitrifying bacteria and trace elements; when combined with Bio-Activ live gravel, its delivers the only complete, instantly balanced and safe environment for your little finned friend. It contains no chlorines or chloramines and cycles instantly so there’s no waiting–just change the water and add fish!