Originally Posted by stevenht
I believe male rams have a "U" shaped dorsal fin meaning the front and back are both taller than the rest of their fin. They have more elongated bodies. Females bodies have the shape of a coin. Very round and not long. Because of this, only the front of their dorsal fin is taller than the rest.
I mean... when a female is clearly a female it's obvious, when a male isn't a female it's even more obvious. Males are more manly when cruising about the tanks while females seem a bit more feminine imho
From my limited experience it's best to get them young, feed em, clean water em and observe. There is nothing more obvious than a happy male and female together. When it comes to the variants (long fin, color morphs) sexing becomes a little more tricky.
I digress... coralbandit has probably sexed 1000 more rams than I've ever seen in person.. whatever he says!
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