API® Copper Test Kit — 90 Tests WaterWay you need a pump that

you need a pump that produces 5gpm (300gph) at 4' of head

water hazards and retention ponds

Each ounce treats 625 gallons (each pump treats 100 gallons)

The Pellet Size is small

API® Copper Test Kit — 90 Tests WaterWay you need a pump thatAPI Copper Test Kits quickly and accurately measure copper levels from 0 ppm to 4 ppm. Copper is a common treatment for parasitic infections, but it must be monitored. If levels become too high, it can be detrimental to fish health. Copper may even be present in tap water. Includes 2 liquid test bottles, glass test tube with cap, and easy to read instructions Measures both free and chelated copper For use in fresh and salt water Makes 90 tests