No waiting...just add fish!. Nutri-SeaWater is Naturally Filtered - Does not remove or modify what Mother Nature intended. 100% Natural LIVE Ocean Saltwater. Contains natural LIVE marine Heterrotophic, Autotrophic and Chemolithotrophic bacteria to provide a proper inorganic balance. Fortified with QX-23 Enrinched Solution. Reduces the need for additional saltwater treatment products. No Mixing Required. Maintains proper pH by providing improved buffering capacity. Nutri-SeaWater can be added to existing synthetic Saltwater aquariums to provide the missing natural LIVE heterotrophic marine bacteria, natural trace elements and natural critical nutrients needed