Well... if it had been in there a year with no issues, then lighting isn't the issue! I was assuming this was a new guy you just put in the tank.
If you replaced the lighting recently, that might be the issue. New lights will be quite a bit brighter than the old ones, and it takes everyone a while to adjust to the brighter lights.
Don't get me wrong... you want that salinity down in the 1.025-1.026 range, and you want to lower it slowly like the LFS
said. But I just have a feeling that a slow rise to 1.030 isn't enough to really cause the anemone to shrink up. Regardless, there's nothing you can really do except lower the salinity by .001 or less a day, keep your water parameters in tip top shape, and cross your fingers.
(By the way... welcome to the Forum!)