Short answer – yes, the One & Only Live Nitrifying bacteria is still good! The temperature of nitrifying bacteria is a concern to many people who worry that their One & Only Live bacteria are not good anymore because they arrived warm. This concern is not necessary as our bacteria prefer warmer water temperatures where …


Yes, there really is a Dr. Tim. It all started with 2 goldfish won at a school fair at age 6 that didn’t survive their first night in his care. DrTim’s gotten better at fish keeping since then! Read Our Story.