Fishes Respawn After 3 Days We confirmed that fishes respawn after 3 days.
Yes, The Catch is definitely worth the trouble it takes to acquire.
After in Genshin Impact, you'll be able to start collecting all types of rare fish.
Best Fishing Rod to Use The Golden Koi can only be caught with a Fishing Rod.
With the horn on its head and its scaleless form clad as if in golden armour, it looks every bit like a king underwater.
If there is a golden koi there, then a rusty koi will likely spawn as well.