Do you know when it was bottled and is it refrigerated? Even if its recently, it also needs to be shaken up daily.
If not sure and not refrigerated, its probably not "living"
yes it was refrigerated when i picked it up and when i got home thats the first place i went i looked on the bottle and it doesnt have a date so the bottled up question i dont know the answer too...
You can also smell it to see if it has an order. If its really fresh, it won't have any odor at all.
Also, you can dose any time, but corals tend to filter feed more at night