Liquid Marine Buffer® will safely raise marine pH to 8.3 while adjusting alkalinity. It will not raise pH above 8.3 even if inadvertently overdosed. Liquid Marine Buffer® contains a balanced blend of bicarbonate, carbonate and borate salts designed to raise pH and restore disrupted buffer systems to the proper balance. Use Seachem's MultiTest Marine pH & Alkalinity to check pH and total alkalinity. Use Marine Trace to restore the proper level of trace and feed NutriDiet® Marine Flakes for thriving, healthy saltwater fish