We have a test kit that requires you compare it to a color chart. I'm slightly colorblind. My husband and I could look at the same test and come away with different numbers. As for the Protozin, if someone can tell me where to find it in the US, I'm more than willing to try it.
Tonight I'm doing the dose for day five, and right before I do that I'll do a 30% water change. Water changes always make me nervous, I've only done them a handful of times.
Our fish look so bad, they must be SO uncomfortable and unhappy.