Hi
I live in Norway, and have a 1.00.000 Gallon koi(mud)pond. Check out my YouTube-channel in the signature for more details. I have also started a new tread under "Renovating a Pond or Lake?"

I have many questions that I hope to get input on. But what I wonder most is what are the water values I should keep an eye on. Temperature, pH, O2, No2, No3, ???

Are there any solutions for automatic measurement of these values? Since I live in Norway, the temperature in the air varies from + 30C to -20C ...

Subscribe to "The 1.000.000 Gallon Koipond" on YouTube, and be a part of the transformation from a malodorous pond in the scrubland, to a healthy pond surrounded by a well kept park!

https://www.youtube.com/channel/UCAxjsVb09IAap-bhIjO9-Og