Hi,
I have this sebae for about a month and it's been growing quite a bit since I got it, but it always had twisted tentacles and the tentacles are folded close to the body, not the usual 90 degree from the body, so the anemone looks flat.
I don't think this is normal but the anemone is healthy and growing and it has darkened quite a bit since I got it. It was light beige now it's rather medium dark brown. It went from about 5" to now almost 8" in a month.
I just bought another one and her tentacles are normals, and it's getting better each day but why is the first one having such tentacles?
For comparaison, here is my normal sebae after a few days in my tank:
