You can find the Betta fish at Candypalooza, and if that doesn't work, try Trevor Island.
The place with the goth boy and the zombie guy. I can't remember what its called.
Hope this helps. :)
Where to find magic 8-ball I'm my sims kingdom
ask the sims around and u will find out
In rocket reef
cowboy junction
cutopia
The Unarcheted Isle. That is Where you Will Find Bones. :)
You will find him in the Zoo. There will be a cut-scene.
the cowboy island
You go to the mayor Ellen
the uncharted isle
there are no elegant essences
On every island. Hope this helps. :)