Red head geo sexing help

  • We are currently upgrading MFK. thanks! -neo
Yes female.
Agree
the males have a much steeper profile, and usually longer fin trailers.
Here are some examples of male/female differences in Geophagines.
These traits are fairly universal throughout the Geophagine tribe, so my examples are not specifically "red head Tapajos,".
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Female Gymnogeophagus quilero Above, male below
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Above male foreground, female further back, of Gymnogeophagus sp Paso Pache.
Below a male of the altifrons group (same group as your Tapajos)
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+1 for female.

My males all have small nuchal humps and trailers on their caudal and dorsal fin.
 
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