How to pair two spot goby

[m1923]

I have a two spot goby, it recently busy building burrows, i am thinking to get it a mate. But i can't distinguish it is a female or male. Anyone has some experience in pairing two spot goby? Any article may helps too !Thanks!


从我的 iPhone 发送，使用 Tapatalk

 

[ThRoewer]

Gobies are capable of changing sex both ways so adding a second may lead to a pair regardless of the sex of the fish you add. Generally the change from female to male goes faster and usually with less friction.
A possible way to sex Gobies would be by their genital papillas: the ones of females are generally thicker and more rounded at the end while male ones are generally thinner and rather taper to a point. It's best visible if the fish are well fed and have a full belly. It also helps to have a good number of specimen to compare.

Sent from my XT1254 using Tapatalk

 

[m1923]

Gobies are capable of changing sex both ways so adding a second may lead to a pair regardless of the sex of the fish you add. Generally the change from female to male goes faster and usually with less friction.
A possible way to sex Gobies would be by their genital papillas: the ones of females are generally thicker and more rounded at the end while male ones are generally thinner and rather taper to a point. It's best visible if the fish are well fed and have a full belly. It also helps to have a good number of specimen to compare.

Sent from my XT1254 using Tapatalk

Thank u very much ! All gobies can change sex , that's interesting!So the new one should be same size or better smaller?


从我的 iPhone 发送，使用 Tapatalk

 

[ThRoewer]

I would try either a little smaller or larger. But the difference with these should not be too too much. Most pairs of these I've seen were of nearly equal size.

Sent from my XT1254 using Tapatalk