Starfish Trophy in AquaPanic!
Save at least 7000 fish in Adventure mode or Freeplay mode.
How to unlock Starfish
This is an accumulative trophy, and is the last of the 'total fish' trophies. You need to reach 7000 fish to unlock this trophy. For the first of the 'total fish' trophies, you will need to calculate the number of fish yourself. But after unlocking the shop, you don't need to any more because you have the number of fish that you have saved shown there.