First question is how old is your tank? And what type of water do you use. What type of lighting do you have.
Anemones are delicate creatures and should only be kept in a mature tank with good water quality. IMO
you need to take your time and drip acclimate them keeping the water warm. Check your SG
and then check the SG
of the LFS
water, drip until they match and then go another hour at least.. It should take several hours to drip right. Fish should be done the same way just not as long..