This is the first game from the jam that got a laugh out of me -- hearing the 'getting hooked' sound effect for the first time was so unexpected but so good! The camera shake through the jelly fish was a nice touch - really adds to the game feel.
The "too-much-of-a-good-thing" fish food mechanic was blast! It spirals out of control so quickly in a really satisfying way. Also that one big fish at the end of all the fish food was a lovely detail - quite funny.
I actually really loved the level design too, the back-and-forth and food changing size are great timing mechanics that add a lot to the simple levels. I got stuck on the crab level, but nice work overall!