I'm going to borrow one from my friend right now. No receipt no box. I already emailed the store and they said no without those items. I sent the manufacturer an email yesterday. It did look bigger with a working heater in the tank.
Anemone looks good still. No change from earlier.
The stuff I used I bought at walgreens with a prescription. I ordered some fish flox from ebay too but got the script because I didn't want to wait for the fish flox to get here in the mail.
I am really glad that you are able to save your anemone. They are hardy once establish. Now it is up to you to provide what it need.
Up until now successfully keeping Gigantea have been few and far in between. I hope over the next few years, we learn a lot about how to best provide for them in aquarium setting. It does seem that there are quite a few Gigantea, at least here on RC, survive the first few weeks hump which was what kill most of the newly imported Gigantea in the past