Efficiently remove ammonia and nitrite, liquefied toxins that adversely effect the health of the pond fish and plant life. Maintains proper populations of necessary micro-organisms for peak water conditions. 67.5 oz treats 10,125 gallons. Size is 67.5 Ounce. Dimensions are 0.787 X 0.157 X 0.269 Lithotrophic And Heterotrophic Bacteria s. UPC Code = 015561208932