New Clownfish

I purchased a pair of Ocellaris Clownfish from my LFS 3 days ago, and I can't tell if their behavior is normal or not. I am new to the hobby, so I'm concerned I may be doing something wrong.

I put them in the display tank instead of quarantining, because there are no other fish in the DT, and I was impatient to have something in there. Wrong, I know. So, ever since they were put in the tank, they have been hiding in the corner behind some LR, practically touching the sandbed. I've tried feeding them twice a day, but they don't seem interested in pellets nor mysis shrimp.

If they haven't eaten in 3 days, is there a chance they are still just stressed, or is something wrong? Is there anything I can do to help them out? My water parameters are safe (no ammonia or nitrite, small amounts of nitrate) as far as I can tell.

Thanks a bunch guys!

PS. I know that it sometimes takes time for new fish to feel comfortable enough to eat, but at what point should measures be taken to save the fish? Also, is it normal that they are barely moving at all, just resting in the corner day and night? I know clownfish like to "nest", but this seems extreme, so I thought I'd get some expert opinions.

 

Juvenile clowns will stick close to something that they feel provides some degree of safety, many times this will be a corner, or the very top edge of the water line, a heater or mag float.

It's not unusual for new clowns not to eat. I would attempt to feed them what they were eating at the LFS, try cyclops as well. While you want them to eat you do not want to introduce too much food into the tank if it goes uneaten it can contribute to new tank syndrome.

I would check an ammonia level.