I don't know if it happens in this species but I know in some squid species males turn bright red instantly for courtship the females. Maybe this is the case, notice also the sculpt is different (the supposed male is longer)
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My collection:- (Details):
Homemade: 106
CollectA: 54
Colorata: 31
Safari LTD: 29
Schleich: 20
Papo: 16
Kaiyodo: 13
Mojo Fun: 8
Ikimon/Kitan Club: 6
Southland Replicas: 6
Bullyland: 4
PNSO: 3
CBIOV: 2
Eikoh: 2
Yujin: 2
Takara Tomy:1
Nayab: 1
Happy Kin: 1
Natural History: 1
Science & Nature: 1
Total: 307