Tomato clown colored changed

I won one of those tomato clowns at last meeting's raffle. Its color then was a bright orange and at about 1-1.5" sized. I put it into my nano tank.

Last week, I finally got around to moving a recently split LTA anemone from my big tank into the nano. It took almost 2 hours before the clown started hosting in it. The clown seems to be very happy, rarely leaving the anemone.

We noticed that it has now changed its color. The body is no longer bright orange, now a darker, blackish orange very much like the Fuji clowns I see at some LFS.

Couldn't find any explaination nor acknowledgement of such color changes in my clown book. So I wonder, if this is normal? Is the color change due to some chemistry between the clown's body surface and the anenome's tentacles? or maybe due to mood or psychological change in the fish?
 
I can't recall if this change happened quickly or slowly, or coincided with the introduction of my Clarkii's BTA, but where they used to be yellow they're now almost pure black.....

Sorry I can't recall more details of the change, but from my own personal experience clowns changing colors aren't that unusual...
 
okay. this clown started color change within hours of jumping into the anemone. as if now, he is dark, just like those Fiji tomatos. He is appears to be very healthy and happy. His perc tankmate is kinda lonely now.... :cry:
 
I have two what I call cinnamon clowns (same as tomato but dark orange). They were in a tank that I bought. I had them for several months then added a coouple of anemones. They both host in both anemones back and forth but only one (the smaller of the two) has changed to bright orange. First time I've ever had one change.
 
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