Seachem Stability is a live bacteria supplement that safely and rapidly establishes the biofilter in a new aquarium — helping you avoid "new tank syndrome," the ammonia and nitrite spike that's the single most common cause of early fish loss.Stability contains a blend of aerobic, anaerobic, and facultative bacteria that break down waste, ammonia, nitrite, and nitrate. Unlike many bacteria starters, it's formulated to remain effective across a wide range of temperatures and water conditions — a genuine advantage in India, where tap water and tank temperatures vary significantly by region and season.Stability is completely safe for fish, plants, and invertebrates, so there's no risk in dosing generously.How to use: Dose daily for the first week when setting up a new tank, then use with every water change or whenever introducing new fish, cleaning your filter, or medicating your aquarium.Whether you're cycling a brand-new setup or keeping an established tank stable through the monsoon, Stability is the safety net that protects the ecosystem you've built.