Why Your Pond Needs Three Stages of Filtration (Not Just One)
Think of your pond filter like a three-person relay team, where each runner has a specific job to get you across the finish line to crystal-clear water. Stage one catches the big stuff—leaves, fish waste, and debris—using mechanical filtration that works like a sieve. Stage two tackles the invisible troublemakers through biological filtration, where beneficial bacteria break down ammonia and nitrites that cause water quality issues. Stage three polishes everything with chemical or UV filtration, zapping …










