Is this pearling?

[Mike]

It’s a small steady stream of bubbles coming off one of my val leaves. I’ve seen videos claiming something similar looking is pearling. This is a goldfish tank in an east facing window that gets very few water changes, but plants that my goldfish doesn’t eat grow like gangbusters. No co2, just occasional root tabs. 

[yannachka]

looks more like leaf damage than pearling. 

[Mike]

Ah that makes sense, my goldfish likes to pull at the leaf tips occasionally.

[Marnol D]

Usually if you trim plants or the plant is growing itll do this. As the plant photosynthesizes to grow or produce more food to repair itself itll release oxygen.