Quote Originally Posted by Zevox View Post
You didn't need it for one of the bottles. It was for getting a piece of heart as a kid, and the gold scale (only needed for another piece of heart, IIRC) as an adult. You're probably thinking of the bottle in Lake Hylia, but that only needed the Silver Scale, which you get from the Zoras' diving minigame.
Coulda sworn you needed to fish for a bottle but it's been a really long time since I played Ocarina. I'll defer to your more recent knowledge.