Hello and welcome. I’m sorry, but I can’t tell anything from the video. You didn’t say what was wrong with the fish, other than it was found outside the pond. You asked us to give you the symptoms, but this (symptoms) is the information that YOU should be giving us — not the other way around. How is the fish acting, what does it look like (injuries?), and why have you been treating it with a “fin rot” medication?
Almost looks like a goldfish, though.
Tell us more about your pond. What size is it? How many and what size fish do you have? How long has this pond been set up? What kind of filtration system do you have going? Have the other fish been acting different? Do you have predators?
And yes, please give us results of water parameter testing — the actual numbers, though, not just that “the results were OK.” We can tell more about your pond when we know those numbers. But we can’t tell anything at all without more information from you!
