How to tell difference between a male and female peacock goby

[5thgradeguppyraiser]

Well, my long lost goby turned up today, and I want to getna male to fertilize her eggs. How can you tell the difference?

 

[Jake98]

What type of goby is it?

 

[5thgradeguppyraiser]

Peakock goby

 

[TheBettaBar]

What I found:

"Sexing Peacock gobies is very easy. The females stay around 4-5 cm in length while the males can grow up to 7 cm long. The male is also equipped with a noticeably bigger head and sports of type of cephalic hump, while the body of the female is much more streamlined.

Both males and females are very colorful with both sexes displaying bright red vertical markings over a blue main body color. Both sexes are also equipped with bright yellow fins and have a characteristic black dot on their caudal peduncle. The female differs from the male by having a yellow belly and a black edge on her analfin. "

 

[5thgradeguppyraiser]

Okay thanks! Also the supposed female I got today has neen acting strangely lethargic after looking soeager to join the tank

 

[JeffK]

If you could post a picture(s) I may be able to tell. They can look pretty similar when younger, but as they mature, the males will become obvious. One other thing you could look for - when you look at a male's eyes from various angles, they will appear red.

 

[Claire Bear]

LOL-HI 5thgradeguppyraiser. I didn't realize you were talking about one of the fish that I keep. I know them as Peacock Gudgeon. I just went online to see what was different as TheBettaBar was describing my fish. LOL-I have a 20 gallon set up with mine and have 1 male and 2 female. I have been hoping that they would breed but so far nothing, good luck and glad to realize they are the one and same!
Yes, post pictures as JeffK suggested!

And here are pictures of a male and female: