For some reason I always thought axolotls were herbivorous, nice to learn otherwise! I thought the eating mechanic was a little awkward to use in practice, like a lot of time spent chasing after the one fish who gets away kinda breaking the flow of the levels. With the limited stamina it was hard to know when I was allowed to have fun going fast or when I had to save it for later. Maybe make it so you can risk a bite out of a shark/octopus/etc. to get a little back if you want to take the risk?
The axolotl hurt sound made me sad so it made the final boss uncomfortable lol, but this was really a great game. Maybe could’ve used more aquatic ambience, both in the sense of the song and overall atmosphere, but you gotta prioritize what you gotta prioritize and I think you really nailed it overall :)