You need to find that anemone another home right away.
As most folks know, I've had over 20 anemones reproduced in my tanks. Mine are almost never fed. I have a Rose BTA that's about 14" wide. Eats only what the fish don't.
2 weeks? When I set up my 215 it went 2 months without a fish. Even when I reset my 215 up for freshwater, it went 6 weeks before a fish went in it. Bad, bad things happen in this hobby to those that rush.
Bill
215g FOWLR... and anemones, GSP, gorgonians... carp, that isn't FO!
"I killed my first SW Fish in 1971..."