The Planted Tank Forum - View Single Post - Are my Rams Male and Female??
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post #17 of (permalink) Old 10-02-2013, 05:56 AM
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Join Date: May 2012
Location: Missoula, Montana
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The length of the anal and dorsal fins are the best way to determine sex. If both the anal and dorsal fins extend beyond the caudal peduncle and into the caudal (tail) fin then it is a male. Females rarely if ever have both the fins extend beyond the caudal peduncle. The rose/pink belly would be the next determining factor, though this is not always visible. Then next would be the black spot, males usually have no blue specks in their black spot, however some do. It looks like you have 2 females but hard to say for sure I'm no ichthyologist. Also if the fish is not yet full grown it may be hard to determine sex from the fin length.

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