Many fish just need time. Keep in mind most of these fish have spent the majority of their life in the limitless ocean, now they are in a completely different enclosed environment, stress is to be expected. It has only been a day and I wouldn't worry. My blue girdled angelfish spent the first week in the corner of the tank. Now she is very active, and very healthy. I wouldn't worry about the fish too much yet. One thing you may want to make sure you do is to keep lighting low. Bring lights can cause stress on new additions, just as no light can.