[How to tell the gender of Rainbow Shiner?]

AMAZING COLORS!!!! WOWIII 

[How to tell the gender of Rainbow Shiner?]

The colors are AMAZING!!! I still don't know why this fish is not popular. Cold water fish so heater is not required (less energy consumption). Native fish and hopefully more and more habitats are protected (don't need to destroy habitats in some other places). And they are pretty hardy fish. Thanks for sharing and I will follow the link.

 

[How to tell the gender of Rainbow Shiner?]

I am very interested in buying more rainbow shiners with early showing of the blue fluorescent color. Ideally the blue color is homogeneous and it appears in very young age. Thanks 

[How to tell the gender of Rainbow Shiner?]

Just posted four photos. They all look the same to me. Five of them have the blue fluorescent color (only visible under LED light). Maybe they are just too young.  

[How to tell the gender of Rainbow Shiner?]

 

[How to tell the gender of Rainbow Shiner?]

Not sure it was political or not. My rainbow shiners can have their own opinion of their gender but I am more interested in trying to figure out their biological sex. In any way, thanks for the answer. I found it was not easy by looking at the body size and by looking at colorations. I think my fish are not mature yet. 

[How to tell the gender of Rainbow Shiner?]

Hi,

Needs some helps to tell the gender of rainbow shiner. Also I saw same of the rainbow shiner I have showing blue fluorescent color. Are they all females?

 

Thanks

 

John