Here's my live playthrough of your game:

Interesting way to interpret the topic! the way the fish moves feels right, like swimming, and makes the game not too difficult and not too easy. I had fun, I like this kind of game ^^ I think it would be great if bigger fishes have different looks or specific colors

Hey wait a minute, something's fishy here ... /8) Gimme a funky bass line. Loved the game, super fun and challenging. 

Funny Game. I like the way to play the game :)
The background and the fish sprites looks very good.

This was a lot of fun - the high scores leaderboard was a really nice touch!

Nice submission! Very simple and easy to understand gameplay. Animations for eating fish would be a great improvement. Other then that: Good gameplay, sound effects and music. Very enjoyable to play.

Oh yeah, also the way the game played out was really interesting. At first I assumed it would be easier as I got bigger, but it actually balanced well because it was harder to maneuver. Great pace throughout.

I love the way the fish swim, and the inertia of my fish felt just right. I never won, but I had some really intense moments where my greed got the better of me and I accidently bumped into a bigger fish trying to snap up a delicious morsel.

I am the second high score! Beat that! :D You know, I never really felt like I was breaking the ecosystem just surviving  :D

Nice game! I like your interpretation of the theme. Very solid gameplay, and didn't run into any bugs. The controls felt a tad slow, but I actually think it fit the game and made it reasonably more challenging. Overall good job!

Good game! I liked the control scheme, it worked surprisingly well. The graphics were also nice, although one problem I had was that sometimes you couldn't tell if a fish was larger than you or not (although the original had that problem too). Still, it was fun!

Nice game. Actually thought that it would be like agar.io where I would grow after I had eaten a certain amount, so that I could eat the bigger fish. Add a touch of music and the game would capture one even more.