Female clownfish darker towards the top.

[StealthJett]

My female clown has a bit of a mottled darkness on her upper half. I bought the pair as regular ocellaris pair but the male ended up being a Darwin clown. Could she just be a mutt of sorts or could it be caused by stress? Thanks!

 

[Peter C]

I would say it is probably just a natural color change from maturing. Percula clowns will get darker as they mature on top like that so it's possible this could be the case. If the fish is still eating normally and isn't showing other signs of stress like abnormal swimming, hiding, or fighting tankmates I would not worry about it.

 

[StealthJett]

I would say it is probably just a natural color change from maturing. Percula clowns will get darker as they mature on top like that so it's possible this could be the case. If the fish is still eating normally and isn't showing other signs of stress like abnormal swimming, hiding, or fighting tankmates I would not worry about it.

If the clown is an actual Percula would you know if there are any major differences between the two I should be aware of. Would the two clowns still be able to mate?