I have some software which is smart enough to make me unable to find a new crack, yet dumb enough be controlled by my Windows clock. After I had set back my clock to use the software, and reset the clock. All my fish are like 600 years old, and I have apparently played the game for.... well... just look at the picture.

Yep, you've found the time cheat. It will work on any of the game platforms. Use it with caution.

That sux. I am doing some breeding experiments by exploiting this. I put my real game on "stop time". I am just doing to find what combinations make what. I have a great list so far. I don't think I have found every type of fish, or variation. I am still wondering what two fish make a Spotanus.
Check my attatchment. It's a text file of what I have found so far. It just took me a few hours to make everything on that list. I'd say 6 or 7. That's the time I spent, not what the game thinks I spent lol.

Spotanus is one of the body types that only comes from eggs.

Twin-fin is the fin type that only comes from eggs. I haven't even seen a twin-fin spotanus!

Bummer.... So that means the only way to get all the types of Spotanus are to get them from chance on eggs? Do the rare eggs have a higher chance of a Twin-Fin Spotanus, or a Great Sail spot?

I currently have both Twin-Fin and Great-Sail Spotanuses just by interbreeding them. I'll have a look at their heritage later on and post here :-)

I get lots of twinfin spotanuses. But I don't get greenfin spotanuses nor spined spotanuses!!

You can not get Twinfin Spotanuses any other way than by breeding 2 Twinfin Spotanuses or by eggs. Spined ones arent too too rare, you may just be having bad luck.

I know how to breed finless fish
you do it by breeding any fish one of them must have Twinfin another is flagged for example TwinFin Spotanuse + flagged Bananafish = Finless Quciksilver only rule is one of your fish must have twinfin another must be Flagged

Only common eggs create Spotanus', the Unusual and Rare eggs do not contain the Spotanus body type.
There is also two other ways to make Finless fish, these are :
Finless + Finless
Finless + Twinfin
Hope that helps, Becky.