Your fish looks severely bloated and may possible have a bacterial infection. Make sure the water is between 75 and 80F because cold water will stress the fish further
He is fine! He is just a baby and he just ate. It goes away in a few hours then you need to feed them again. But you can't feed them that much when they are older. And the water is brownish because I have a Indian almond leaf in the bowl.
Wow, never saw this until now, he was such a fat dude in that picture. Unfortunately while Donofin was nearing full size a few weeks ago he got stressed by some anglegrinding in our house and died...