Really nice game, perfect "rage-quit" amount :D Very fun/furstrating/hard/nooooooo to play and very interesting mechanics. Also, really cool, that you can swim underwater, which is good, since it is a game about fish. Better than Get over it! Now, I have to continue playing - top didn't flopped itself :D
Teeny tiny tip from fellow Unity developer: Don't include UnityCrashHandler64.exe in your build - it messes up with the itch.io browser.