Thank! More experiences welcome, especially with damaged tube anemones.
Here it is - morning after arrival. The damaged part was cut ~7 PM (19.00 for the rest of the world) and body buried in the sand in plastic tube (ReefPlus bottle).
So far it is 2.5 times larger, that it looked in store - 5.5" from the center to the end of tentacles, 90g tank. Seio 630, adult percula clown and young mombasa lion for comparison:
So far burned face of the valentini puffer - likely puffer tried to check, if it is edible. Two white streaks.
Any advices? Will move it in more open space, of course.