Caribbean Giant Anemone

[bdepierro]

I bought a caribbean giant anemone today i acclimated him over a 30 min period checking the water till the ph and salinity were the same as my tank 1.026 and 8.2. there are no nitrates or nitrites or ammonia. the alkalinity is between 2.9-3.6 milli equivalents per liter and calcium is a little low about 360-380 ppm. when i first placed him in the tank he was upright and seemed fine now 4 hours later he is laying on his side and hasnt attached himself to anything. What should i do he still seems attentive i tried offering him food by using tongs and brine shrimp but he retracted his tentacle when the food touched it.

 

[bdepierro]

heres a picture

 

[kjboer7]

I wouldn't worry yet you just put him in there I'd give him a couple of days to get used to your water and tank