NPCs composing that spawngroup :

a_reef_barracuda (25%)

a_reef_pirahna (24%)

a_reef_swordfish (24%)

a_sea_turtle (24%)

a_sea_turtle_youngling (3%)

NPCs spawning around that spawngroup :
(Max range : 100)

powater front room sharks, range=75 (-957,6,-54)

a_reef_hammerhead_shark (50%)
a_reef_shark (50%)

powater traps, range=88 (-972,83,-56)

a_swarm (10%)
a_swarm (10%)
a_swarm (10%)
HatchSpawnPH (90%)
HatchSpawnPH (90%)
HatchSpawnPH (90%)

powater Monstrous_Sea_Turtle, range=61 (-946,16,-59)

powater large mobs, range=87 (-945,114,-69)