MICROLIFE-S2 Liquid Beneficial Bacteria – Biological Filter Starter

Don’t wait weeks to safely add fish to your new aquarium. MICROLIFE-S2 is a professional-grade, highly concentrated blend of live, beneficial nitrifying bacteria designed to instantly kickstart your aquarium’s biological cycle and prevent deadly “new tank syndrome.”

In a new tank, toxic ammonia from fish waste builds up quickly and can be fatal. MICROLIFE-S2 introduces millions of hungry, active bacteria straight into your water column. These microscopic workers rapidly colonize your filter media (like our Lava Rock Chips or filter sponges) and immediately begin breaking down harmful ammonia and nitrites into safe nitrates. It is the absolute fastest and safest way to establish a healthy ecosystem. It is also perfect for routine maintenance—dose it after every filter cleaning or medication treatment to instantly replenish your biological colony and keep your water crystal clear.