Best picture of the day.
Btw, what are you feeding the hungry one? Your little one probably tried to eat a snail, but got a mouthful of moss instead.
My hungriest fry will swallow WHOLE snails because he's too lazy to pull them out of the shell. I'm pretty sure FF eats at least one a day.
I recall back when this same fish was 1.5cm & he had something lodged in his throat for HOURS. Most likely a snail too. Absolutely nothing I could do but he managed to gulp it down eventually.
You don't get this kind of entertainment from guppies, live bearers, tetras, cories, etc....
Bettas are so much more fun.