Found the "Oxygen Mini Lab Test", for Freshwater & Marine Aquariums,
Accurate measurement of Dissolved Oxygen, which I was using when I was in
charge of my koi pond. It uses 10 ml of water and 4 reagants and has a
compenstion table for water temp and salinity, and gives the results in ppm
dissolved oxygen.

It's made by "Red sea fish pHarm, ltd, Eilat, Israel." I bought it at
PetCo.

--
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