Anemone in new 15-gallon setup

[J-o]

I recently set up a 15-gallon bare bottom tank using media and rocks with coral from my established tank. I have a single lightning clownfish and I decided to bring over the anemone from the old tank to the new tank. The coral is doing great, and so was the anemone at first. For the past few days, it has been closed, but today it opened although it is smaller than usual. I fed it a little frozen food and it seems to have become more active. Since I transferred rocks and media from the established tank ( 1.5 years) is it okay to add the anemone at this time?

 

[blaxsun]

It should be.