dwarfpike said:
Red jewelfish can be a pain to both sex
Yes, they are not always easy to sex and are often called monomorphic, though they are most certainly not. They are only monomorphic to those who are unable to sex them.
To me, Imgentry's jewels are obvious examples of a male and female. I am 99.9% sure. Not only their apearance but the way they are together in the pictures.
Male and female jewels have different body and head shape, though it is somewhat difficult to describe. Of course it is much easier to sex a fish in person, then from a picture, but from Imgentry's pictures, IMO, their sex is obvious.
I purchased 6 jewels last year and am 6/6 in sexing them from young small fishes at the LFS. Though, I had picked them out, 2 last may, an obvious male and an obvious female, and another 4 in december, 2 obvious females and 2 obvious males. Now, if I had to sex ALL the young jewels in the entire tank at the LFS, many I would have no idea,no clue, especially at such a young age. But in comparison, most young juvie Central Americans, I would not have near the success rate in sexing at such a young age, other then possibly picking out one obvious male (sometimes).
I currently have 3 young jewels, that I have kept from one batch. They are 3 months old and have grown rediculously fast, and although they are much larger then jewels typically sold at the LFS, I am still not absolutely certain of their sex. I think it's 2 males and 1 female, but only time will tell for sure.