Sexing umbie's?

[JESTERX626]

How does the look of a male differ from a female? At what size can you sex them and soforth?

 

[cichlaguapote]

http://cichlidae.com/article.php?id=138

http://www.cichlidscene.com/ look under umbiferum..

But there have been females that possess the same traits as males so it's a gamble unless you're going on venting or waiting for it to grow out to a good size.