NPCs composing that spawngroup :

#Faleniel_of_Darkwater (100%)

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

sirens_1, range=55 (83,-60,-146)

sirens_19, range=18 (46,-47,5)

sirens_23, range=18 (47,-60,5)

sirens_24, range=86 (74,20,3)

sirens_25, range=99 (77,33,3)

an_enthralled_molkor (100%)

sirens_27, range=74 (102,-40,-135)

sirens_35, range=27 (33,-81,-135)

sirens_36, range=28 (34,-26,-135)

sirens_37, range=65 (24,11,-135)

sirens_38, range=74 (28,-129,-135)

a_siren_beguiler (100%)

sirens_47, range=74 (19,20,-20)

a_coldspine_seahorse (50%)
a_swordfish (50%)

sirens_70, range=86 (-54,-78,-133)

sirens_71, range=93 (119,-78,-153)

a_neriad_mistress (50%)
a_neriad_mistress (50%)

sirens_72, range=83 (-51,-30,-133)

sirens_73, range=37 (65,-44,-148)

sirens_74, range=55 (-27,-54,-157)

a_neriad_mistress (100%)
a_neriad_mistress (100%)

sirens_109, range=86 (115,-52,-100)

sirens_110, range=87 (115,-67,-100)

sirens_119, range=74 (102,-71,-135)

sirens_125, range=82 (44,27,-54)

sirens_126, range=52 (36,-106,-80)

a_siren_templar (50%)
a_siren_templar (50%)

sirens_127, range=91 (45,36,-80)

sirens_133, range=86 (-57,-65,-100)

sirens_134, range=92 (-63,-44,-100)

sirens_135, range=98 (-63,-90,-104)

a_servant_sea_elepha_190188, range=42 (71,-61,-148)

a_coldspine_sea_hors_190201, range=47 (75,-42,-149)

a_coldspine_seahorse (50%)
a_swordfish (50%)

a_servant_swordfish_190209, range=77 (53,20,-16)

a_swordfish (100%)

a_servant_swordfish_190210, range=46 (54,-15,-19)

a_swordfish (100%)

sirens_231252, range=42 (71,-61,-152)

a_servant_manatee (100%)

sirens_231256, range=78 (-19,8,-13)

sirens_231263, range=47 (75,-42,-150)

sirens_231264, range=18 (47,-59,5)

sirens_231274, range=82 (-50,-29,-133)

a_watery_servant (100%)

sirens_231277, range=29 (34,-25,-135)

sirens_231278, range=51 (36,-105,-80)

a_siren_seductress (100%)

sirens_231279, range=85 (-53,-77,-133)

#shimmering_sea_spirit (10%)
an_icy_servant (90%)