I've actually got 4 magic fish now, and have been using the Clever Arts software to work out how to get a particular type of fish and what I get if I cross 2 fish together.

To tell you the truth, rather than just trying to get all the magic fish, I'd love to just be able to get lots more tanks, then makes heaps of new breeds, and run it as a fish store type thing, and have the aim to get as many breeds as possible and make as much money as possible (and be able to upgrade the store itself and that kinda stuff).