I have changed the food and checked for any stray voltage in the tank and added a grounding probe
Wow. Have you noticed any improvements since making the adjustments?
Have you tried adding vitamins to the food and water? Soak the food in something like selcon and maybe add some to the water once in awhile. They have Vit C you can add to the water too just watch the alk and ph.
At the very least, you may be looking at permanent disfigurement. You didn't mention the cause, just that you made some changes, what did you pinpoint the cause as?
The cause was a broken heater,I lost almost all of my corals and most of my inverts .The fish got stressed to say the least.
I was just wondering if it would grow its fins back now that everything is back up to proper levels.