Black tail Clarkii?

[Walkingupstream]

Hello,

I've been using this forum for the past year, but this is my first actual post (thanks to all the great advice and info I've gotten just lurking the forum!)

Anyway, I picked up a (I guess it is) Clarkii Clown from Petco on sale about two weeks ago. The one I got was one in a tank with about 6-7 other exact same looking fish, except the one I asked for was the only one with black on the back half of its tailfin.

Is this truly a Clarkii clown, or is it some genetic aberration? I searched and searched, but didn't find anything on the web about a black-tailed Clarkii.

I've got a huge green hairy mushroom, a big brown hairy mushroom, a midsize green/purple bicolor frogspawn and a smallish two-head torch in my tank that he's yet to show any interest in (not a big deal, though I've read Clarkii's will sometimes pair with any of these).

Photo below:

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Thanks!

WU

 

[yodacroz]

clarkii's can have black tails and even have bodies that are almost black

 

[Winwood]

Many clowns in the clarkii complex display black in their tailfins as juveniles. I would suspect it will disappear as the fish matures.