Tetra EasyBalance - long-term care for biologically healthy aquarium water and a reduced number of water changes, 500 ml (Pack of 1)Simplifies aquarium maintenance: no need for monthly partial water changes with a moderate fish stock Extends the period between (partial) water changes and therefore reduces water consumption Reliably stabilises important carbonate hardness (KH) and pH water values for up to 6 months Tetra EasyBalance enriches aquarium water with essential vitamins, trace elements and minerals for healthy fish and plants Scope of delivery: 1x Tetra EasyBalance 500ml