Amphiprion
Premium Member
<a href=showthread.php?s=&postid=7534213#post7534213 target=_blank>Originally posted</a> by snorvich
I believe there are three states for Cirrhilabrus. The "initial state" is composed of females and all Cirrhilabrus pass through this state. The second is the initial male state which some females can transition to but this transition is situationally induced. However males in this state can revert to female. The final state is the terminal male state, which again, is situational; all initial males do NOT make this transition. Once they do, however, they cannot revert. It is difficult to make longitudinal studies of dimorphic transitions as the aquarium dynamics are simply not the same as in the open ocean.
If you want to make the distinction, the 'initial phase' consists of females that may or may not have the potential to progress into males (i.e. they will not be males, yet). In the wild, you will rarely observe a reversal as you describe. It is more possible in aquaria, but hasn't been confirmed. The conversion of color in immature males (as Dr. Tanaka pointed out) is more likely than a complete reversal.