ruey wrote:
This fish is used in a mini-quest of sorts. Obtain the fish by fishing or on Auction House. Then go to Mount Zhayolm, or Arapago Reef, find the cluster of Apkallu, you should see 1 or 2 with a green NPC name, trade them the fish and they will follow you around the zone, you can zone out and they will follow you when you come back, but note that other people can "steal" your apkallu if they trade the fish to it.