As the title suggests, I'm wondering if there's some way to test how much dissolved oxygen is in the water column? We have kits to test for just about everything in this hobby, and I was wondering if theres one that measures the dissolved 02?
Also, what is oxygen in the water column measured in? Is it done in parts per million or is it measured in another way?
I don't have oxygenation problems, none of my fish are gasping, I'm just curious if/how its measured.
Thanks in advance.
Also, what is oxygen in the water column measured in? Is it done in parts per million or is it measured in another way?
I don't have oxygenation problems, none of my fish are gasping, I'm just curious if/how its measured.

Thanks in advance.