Hello,
We're going to investigate further to make sure there is no bug, but here is some information on breeding.
There is a 5% chance the offspring of 2 fish will be will be 1 stage better than it's parents. So 2 Average fish can breed a Great one.
There is also a 10% chance that offspring will be 1 stage worse.
Finally, there is an 85% chance that the offspring will stay the same.
It may take a while but if the conditions are right you should be able to breed your way to pristine!
I hope that helps!
Chizel
I have been breeding my Lantern Fish to get to pristine as the way that's known to get one always gives average (Melting the Frozen Lantern Fish).
I've been at it for two days and am currently at Great quality for them, but my sticker book still says the best I have is average. The count of how many I've 'discovered' also hasn't increased.
Is this a bug or is there a different way to get the Lantern Fish to pristine that we haven't found yet?