2.5" is too big? That's smaller than some of the other species suggested on here, like Halichoeres iridis and Halichoeres chrysus, and about on par with most female leopards.Thanks for the suggestion! I have seen them and while it sounds like a good fit for my tank, that size is just too big, especially considering that I don't know when/if I'll be able to upgrade my tank by the time it's outgrown my current one.