ASAP- Clownfish turned white

[Andrew]

My female tomato has turned a pale white color over the last few hours. Only on one side. Her whole one side is a pale white. The rest of the fish are fine and shes acting normal. Any ideas?

[lessthanlights]

are your lights off? fish often change colors/look different at night.

[Andrew]

lights are on. I know they will turn pale when the light are off but theres something wrong. Looks like maybe she got traped between two rocks and tried to get out and toor up her skin.