It isn't long before you lose track of time.
It's been at least weeks, perhaps months, since you found yourself turned into a female fish in the pond. You learn a few things quickly: the pond is deadly, but you're larger than most of the fish.
That bit helps you survive. It's a fish-eat-fish world here. You've eaten a few smaller fish yourself. You're also large enough to be of little interest to most of the predators around here. That is, other than the cranes. When you see those long legs, you make it a point to go into the deepest part of the pond no matter what. There are occationally fishermen around the pond, too. Usually kids who don't know or care that fishing is illegal here. You find their hooks easy to miss and even make a game of stealing their bait.
You settle into a routine after a while. There are times when you consider just ending it all. It wouldn't take much, just let a crane take you. It would suck, but at least this boring existence would be over.
You're swimming one night when you spot something intriguing and go to investigate. It's small and looks like an insect. In a moment of carelessness, you swallow it.
You regret this immediately. Even before the lure is tugged, you feel the sharp pain of the barbed hook inside your mouth. Almost at the same moment, the line is pulled hard and you're pulled up toward the surface. You turn and swim as hard as you can, pulling on the line and hoping it will break even as the hook bite through your cheek. For a split second you think you're winning when you suddenly break the surface and are thrown onto the shore of the pond. Gasping, you see who caught you, a teenage boy who is scrambling to grab you and claim his prize.