Moved to sick fish forum:
Considering the stress of being moved to the store I'm disappointed your lfs
even sold it so quickly. I'd never deal with a store like that. Fish need time to adjust to ph/sg
levels and also some time to adjust to the tank. IMO lfs
shouldn't sell stock for at least a couple of days to a week and it's best to make sure the fish is accepting food before taking it home.
As long as you slowly acclimated (at least a 1 hour drip preferably) and as long as your ph/sg
isn't too far off from your lfs
then there is a good chance it will do fine. If your lfs
or you rushed the acclimation then there is a chance you could loose it. It's not unusual for them to hide the first couple of days but it is if it's truly not moving much at all.
Is it breathing heavy? Has it attempted to eat anything yet?
Is your other clown you added
OK? If so the 12 gal
isn't going to be big enough IMO
when they are fully grown. If not then I'd recommend you slow down a bit.
Keep the lights off and monitor closely for the next couple of days. Make sure nh3
stays at 0 ppm
at or below 10 ppm
since you have corals.