I have a 240 gallon reef tank that has been running for about 14 months. I just purchased a beautiful RTBA and have introduced it to my tank. It was attached to a nice rock so I bought it with the rock thinking that this might reduce it's stress. I read that anemones need a lot of light so I placed the rock with the anemone on it where it will get plenty of light. I and my daughter were watching it and to our surprise it started to move. Within 30 to 40 minutes after it was put in the tank it moved to a shallow cave under a small overhang. Have I made a serious mistake already? What if anything should I do now?