Everything looks good. Couple of things to add some insight. Clowns are not known jumpers, so the reason most likley isnt because hes a silly fish. More than likley there is a water quality issue you havent nailed down yet. That coupled with your missing wrasse is why I am saying this. The heavy breathing you witnessed could be from acclimation shock but IMO that window has passed. The other 2 options are harrassment from tank mates leading to stress, ie heavy breathing or again water quality issue. And lastly your Electric flame scallop is not photosynthetic but will require frequent spot feedings, phyto seems to be a good food choice but there diet is really not 100% known. They tend to die quickly in our systems, mainly because they move to locations we cannot get too and feeding them directly is not easy. Good luck..