NPCs composing that spawngroup :

a_golden_haired_mermaid (20%)

a_mermaid (40%)

a_stiletto_tooth_piranha (40%)

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

kedge_a_stingtooth_piranha2, range=18 (-176,-49,85)

a_stingtooth_piranha (100%)

kedge_a_cerulean_sailfin3, range=75 (-104,-49,-48)

kedge sailfins, range=78 (-160,-108,33)

kedge_a_stiletto_fang_piranha94, range=2 (-175,-33,115)

kedge_a_bull_shark9, range=96 (-113,-103,-50)

a_bull_shark (95%)
a_frenzied_bull_shark (5%)

kedge Seahorse Patriarch, range=52 (-143,-71,13)

kedge Ferocious Hammerhead, range=47 (-131,-43,11)

a_cauldron_hammerhead (90%)
a_ferocious_hammerhead (10%)

kedge piranha or sailfin, range=20 (-157,-35,97)