I didn't start catching these until I hit 365 on fishing, so I wouldn't bother until your at or very close to that.
At 365, I can catch them with only using the bright baubles (+75) and Seth's Graphite Fishing pole which you get as a quest reward in Terokkar.
They are only catchable in the highland mixed pools in the 3 lakes accessible ONLY by flying mounts, or if your a 68 druid.
And finally, cooking these up are the only way (at present time) to get your cooking skill to 375.
Good luck
At 365, I can catch them with only using the bright baubles (+75) and Seth's Graphite Fishing pole which you get as a quest reward in Terokkar.
They are only catchable in the highland mixed pools in the 3 lakes accessible ONLY by flying mounts, or if your a 68 druid.
And finally, cooking these up are the only way (at present time) to get your cooking skill to 375.
Good luck