I really liked the visuals and aesthetic of the game, from the art to the sound.
It would be nice if the fish in your school turned into a slightly different colour to differentiate them when trying to “recruit” new fish.
I also think the message “Some things need more than strength alone” is a bit misleading, as it just means you need more fish, but the text suggests that you should look for a different solution. Maybe something like “Some things can’t be achieved by few” would still fit the tone of the game, but make it clearer that you need more fish.