it's definitely a rare fish, it's tied with a few others as the most expensive fish in the game. it can be found in rivers on cliffs from march-may and september-november, between 4pm and 9am. I'm not sure when peak times are, but it's always very rare
Visit my NL dream towns!
Angie from Maplerow, Ranae from Wayfield and Olive from Yorkwood
Update: I caught the golden trout last night, but it must've not registered for some reason because it's not in my encyclopedia. I have to search for it again. But don't worry. I will let you know when I catch it again.