Sexing yellow watchman goby possible?

[PupChow]

Is it possible to distinguish the sex of yellow watchman goby? A local aquarium has a pair of very healthy looking yellow watchman that stay in the same burrow and tend to swim together (one ~1.5" another ~2" in length), is there any sure way to tell?

 

[FMarini]

nope----
however male gobies can tell female gobies apart

 

[PupChow]

Do males tend to fight each other off? If the two are sharing burrow and swimming together, is it a good bet that they may be a pair...?

 

[Eklikewhoa]

If they are tolerating each other then I would say it's a pair.

 

[adtravels]

actually alot of ywg females are grey so those are easy to tell, there are pairs that are all yellow however, they are not so easty to tell

 

[Solitaryensis]

<a href=showthread.php?s=&postid=12437421#post12437421 target=_blank>Originally posted</a> by FMarini
nope----
however male gobies can tell female gobies apart

Why such an emphhatic response? Apparently they CAN be told apart...according to this study and many others.

http://www.reefkeeping.com/issues/2005-12/ft/index.php