Eco pH+ Tester Pen by Trans Instruments Diversified Waterscapes Pharmaceutical-grade fermented barley extract

Pharmaceutical-grade fermented barley extract

and proper circulation in the pond via a pump

4 independent outlets

The Vulkan 37-2

Eco pH+ Tester Pen by Trans Instruments Diversified Waterscapes Pharmaceutical-grade fermented barley extractRequires calibration solution, which is sold separately The Eco Series pH+ Tester Pen gives fast, accurate, and easy to read pH readings. No more need for test strips or color test kits! This convenient test pen makes it easy to do frequent testing for accurate, safe pH control. Controlling pH effectively helps balance water chemistry, enhance fish coloration, promote spawning and control CO2 levels. Includes protective case and (4) 1. 5V button cell