KoiMedic - PH & Temperature Digital Tester
pH & temperature are the most basic test parameters for Arowana aquarium & Koi Pond.
A healthy fish requires a water condition near to its native environment to thrive.
At the right water condition, the fish will be more healthy and resistant to sickness, and therefore able to grow in full color.
Commercially available liquid pH adjusters are used to adjust pH. But care must be taken to make adjustment over a period of time. Otherwise the water will contain too much chemicals.