Hmm i've been looking at mine and i do think it might be too early to tell, however i do see a noticeable "bump" about an eigth of an inch or so from the dorsal fin.
Ive had it home for 3 or 4 days now and its fins are already showing more and more color.
I do have a camera now, but it didnt come with a cable to connect it to the computer, so im stuck without pictures for about a week or so
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