01-25-2012, 01:42 PM
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The female fish is smaller than the male and have more pink pigmentation on her ventral region. If you look at the anterior region of the dorsal fin, you can see that her fin rays are less developed. It is also common for females to have a plumper body shape and more rounded edging of the tailfin. The back of the dorsal and anal fins have a more pointy edge in the male ram, and the tail fin is also more sharply edged. The male ram can be recognized on his V-shaped tail fin and the elongated second ray that is present in the dorsal fin.
Looking at them it looks like 2,4 are male and 1,3 are a female. They may have also not colored up enough to be able to sex with some certainty.
Last edited by Tazman; 01-25-2012 at 01:45 PM..