Great concept. Good progression of puzzle difficulty and lots of puzzles, I had to stop and think about the last few. Good visuals/feedback, the "can't move there" red fish indicator is appreciated there. Screen space is used effectively to organize all the important info. Only minor note I'd have is that while the sound effects are good, the background music is very quiet and I didn't notice it at first. But overall very fun this is a very solid puzzle game in general and is really impressive for a short game jam. Great job!