Suddenly pale clownfish

[scubajay16]

Overnight my ocellaris clownfish became extremely pale. His black became white. He is swimming like his normal erratic self. The tank has been running for about 3 months. We added a Bengaii Cardinal and Turbo snail 3 weeks ago, and the clownfish and 2 peppermint shrimp last Thursday. The parameters are: salinity 1.024, ammonia 0, nitrites 0, nitrates 20 ppm, temp 74. Any advice?

 

[Elegance Coral]

It's pretty common for fish to change color while they're sleeping. If it's still discolored after the lights come on, I would do a large water change. 74 is pretty cold for most clownfish. If the temp dropped below that over night, that could explain the color change.

 

[eatbreakfast]

^Agreed completely.