@i cant think WHY DID YOU HEART THIS POST ITS APTASIA! lolTrue Aiptasia is larger and has more “bulbous” tentacles:
Aiptasia mutabilis, Italy | Credit: Benedikt Faas
Aiptasia couchii, Spain | Credit: Amanhuy Duque and Andrea Castro
From what I can see, true Aiptasia are more of a Mediterranean/Eastern-Atlantic species.