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L200

Posted: 24 Jan 2010, 03:52
by mjlfish
Is vent sexing a reliable way to sex these guys? Thanks in advance..

Re: L200

Posted: 24 Jan 2010, 05:19
by five
I had L128 instead. But I suppose they are identical in sexing.

I find that venting is really diificult for me to sex them. They just looks the same to me. I looked at the pectoral fins instead. The male I suppose will be having long spikes, very rough. Female will pricky there, but much shorter than the male.

Well, have yet to be successful in breeding them, so it's just my observation. Hope my sexing is correct.

Re: L200

Posted: 24 Jan 2010, 23:35
by MatsP
They are not EASY to sex at small size, and at mature size, it appears that males are more common than females (this appears to be the case for MANY plecos).

The head-shape (wider on males), pectoral fins (hairier on males) and body shape (females are fatter when in good condition) are all "keys", but all of these keys assume the fish are in reasonably good condition, mature and that there is a group of fish to pick the "most likely a male" or "most likely a female", and it's still not 100% - subdominant males do look very much like females.

--
Mats