Identification of Bristlenose

[JG]

Hi, just wondering if anyone could properly identify these BNs? Also looking to sex the fish in the first photo.

Thanks.







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[Dave Rinaldo]

Ancistrus cf_cirrhosus

[syno321]

Looks like albino of the regular bristlenose, first picture is of a female or immature male, depending on the age and size

Ancistrus cf_cirrhosus

[Mod edit: Enable bbcode to allow clog tags to work --Mats]

[JG]

Each fish is about 4" long.


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[MatsP]

The first one may be a female. It has a little bit too much "stubble" for me to be sure. A photo from above or below would be better, since that will tell us the shape of the head and body - mainly after the proportion of body vs. head, as males have a head that is quite wide, and otherwise relatively narrow body, where the females have a head that is narrower than the body, and "wide hips".

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Mats

[blue teddy]

The first one is female if it as no bristles on the top of it head. The other is male. Both are albino,s or as some call them gold bn.


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[JG]

Here's another shot of the same fish. I'll attempt to capture a top or underside photo.


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[MatsP]

I'd say "fat" = female. But it's still not a great photo for purposes of sexing the fish.

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Mats

[Acanthicus]

It's a female specimen, pretty sure.

[blue teddy]

If it as no bristles on the top of head it is female males have big bristles on their heads looking at the photo looks like a female.


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[JG]

Hopefully this photo provides a better view.




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[Splak]

I'm 95% sure it is a female, too fat to be a male for one. Also, my super red female has bristles all around her "chin" too.