I have the world's worst luck when it comes to clownfish. I got a new pair at the swap on Sunday. I spent hours after I got home removing other fish and anemones that I were a problem in the past. Today I came home and found one of them found the gap in the front between the mesh top and the tank rim. She was on the floor and about half dried out. As I was looking at her under the reef lights I noticed a slight twitch. So I put her in the water and coaxed her back and forth in my hand for about 20 minutes when she started swimming a bit! After an hour or so, the odds seemed to be tipping in her favor. Now she seems to be swimming pretty well and even giving a little chase to the smaller (male).
(The stripes were already squiggly before the incident.) But I just noticed under the leds that her right eye seems to be bulged a bit and has a haze to it. My guess is that eye is goner. This was likely the side facing up and it dried out or possibly got injured in the jump. The floor is concrete and the tank 3.5 to 4 feet to the floor from the rim.
I spent the past couple hours fixing the issues that led to the gap. So now I am pretty sure there isn't any place that they can get through.
my wrasse had a bulged very cloudy eye, made sure it got lots of food during this time, as it was super skiddish. anyways 2-3 weeks later it was back t normal. it seemed that there was no improvement for the longest time them in the final few days the changes were significant. hopefully your clown will recover as well.
One thing that does concern me is they pair was just starting to eat after their long journey from Illinois, to Madison, WI, and then to Lansing. While they are (were) very healthy I would feel more comfortable if it had a nice fat belly and was already taking food in my system. I tried to feed it some reef stew last night and it didn't go for any.
The male did eat a little which was his first food in my reef.
I know this sounds strange, but as I was holding the female trying to coax her back to life, there were a couple times the male swam right into my hand and rubbed up against the female. As if to see what was going on or maybe even help...in fact, her condition seemed to improve drastically after the first time the male was in my hand with her.