Here is what I know from picking females, looking for the tiny girls, looking at how vibrent she is or isn't, check out her colors and finnage (This helps health wise), look at her body, make sure its all slender no bumps or anything. Oh, and make sure her eyes are normal size, other wise she has popeye. And make sure when you pick up her cup that she is reacting as a startled fish, not one that has been woken from her rest. Its basicly the same as picking a male :3.
Also, no special care. Same basics.
And this sounds so noobish, but what is LFS D : ?
Dei Vallie ~ HM M Pinkster ~ VT M Rheya ~ CT F Stardust ~ CT M Koi ~ HMPKEE M Zippy ~ HM M Princey ~ PKEE M Zeke ~ HMPK M Toothless ~ HM M Celestial ~ VT F Frost ~ HMPKEE M Unnamed ~ DT M PeachyKean ~ HMEE M Pongo ~ HM M JellyBeanRayne ~ VT F Unnamed ~ DeltaTDS M