No, I've never done any microscope work. It's something on my plate to grow in the knowledge for the future, to get a microscope and to learn to recognize pathogens.
One of my 3 vets is able to site visit, the trip charge is $650 plus her work, it can be a couple thousand $.
If I take the RTC to her office 3.5hours away, I might get away with a $1000 ($350 basic pathology work up plus more for other tests as needed) plus the fish must be sacrificed.