DON’T and I mean DON’T get near them with a dino dear to you cause AHAHAHA They’ll rip you of it if your riding it near there area and if your not on it it’ll probably murder them when they attack you,oh and did I mention? They’ll rip you back off if you try to get back on your mount and escape.
If a cnidaria killed my spino, boy i would be mad. i lost my sarco to cnidarias, a scare with my icthy with cnidarias, and almost got my megalceros killed by some. ( he is dead now D:) I kill any of these that i can. The dossier says that they are passive, but aggresive when approched, NO! as soon as i step in the water these attack, and they litterally don't move at all, they just sit there and chill until you or a tame steps in the water. one like=one prayer for my deceased sarco, Gatorade (you can find his story in sarco) and one member of the cnidaria hate club.