I acquired a mixed pair yesterday - a mis-barred black and a regular ocellaris - both juveniles. The water parameters were acceptable; I acclimated them slowly as instructed and released them into the tank after about 100 minutes. They seem to get along with each other; mostly hanging out together towards the back at first, but they have explored somewhat and both ate some yesterday.
Do clowns "sleep" in any sense of the word? This morning they were both suspended in the top back corners of the tank, heads-down / tails-up. After I nudged them a little they stirred around, but took some time to get going - even floating sideways on the top for a while. Is this normal behavior?