Alright i hope that this helps you out! it depends on what you are trying to do, discover new species or get to the 7 magic fish! OK! There are a few key fish that will get you there, i dont want to spoil the fun for everyone but you can PM me and ill help you more if this doesnt! I wont tell the exact ones but this should get you going in the right path, You have to stick with these breeds until you unlock the new magics! your COMETS, BETA, AND GOLDBULBS. Play with these three wonders and youll find what your looking for!