Off the southern coast, groups of heroic shallows fish can be found - usually one 21^^-22^^H with two or three 21-22evenH linked. These groups may be linked to the spawning of a named, Ancient Shoal Fish
Shallows fish can also be found in packs of 12 in The Cove of Decay: A Treaty for Treasure. There is 1 group of several level 24 triple downs. To fulfill the quest requirement for Far Seas Requisition Special Contract #NF002, simply zone in and out of the instance until the fish requirement is met, being sure not to kill the named and lock yourself out.