Aquascape 30411 PRO Contractor Grade Pond Tint, 1 gal, Brown Aquascape natural pond Tint creates beautiful natural tea color pond water. Contains humic acid and enzymes to help balance the pond ecosystem. Non-toxic formula is safe for fish, plants and wildlife. One (1) dosage lasts up to 6 weeks! One (1) bottle treats 96, 000 gallons/ 362, 880 litters. One (1) scoop treats 6, 000 gallons/ 22, 680 litters. Made in the USA