Looks like an OK male?
Also looks like a lot of surface movement in tank?
I love my pearls!
The champagne of gouramis IMO!
They are pigs who prefer little current and still waters.
Who is in tank with him???
fin rot usually has a brown tinge to it on the end. I'd just treat with 1 tablespoon of salt per 5 Gallons for a week and if that doesn't work then worry. Don't use melafix. Gourami's HATE it. Labyrinth fish hate oil substances on that float on the surface.