Welcome to the Candy Crush Saga Community
Do you have a question or need help with your game? Ask the Community.
Hi @caberman,
it could be a connection error, so check your internet connection. Keep in mind, that the fish are only activated on certain levels (in the levels where it's possible to choose them as a booster).
If all of the above are ok, and you've done the standard troubleshoot, contact player support through your game app (choose option missing rewards).