Bichir Sex

[jscurrier]

What is a good way to tell the sex of a bichir. I tried to look it up but couldn't find anything. I have 2 of them and was wondering if i can see what they are.

[toddnbecka]

I believe it's the number of dorsal spines, but I can't remember whether it's the male of the female that has more. In any case, if they're the same species and have a different number of spines, you have both sexes. It's likely a moot point though, they don't breed in aquariums as far as I know.

[Fishguy2727]

The males have a larger, more muscular anal fin. Generally you can't tell until about 4" or so.

[jackson17]

I believe it's the number of dorsal spines, but I can't remember whether it's the male of the female that has more. In any case, if they're the same species and have a different number of spines, you have both sexes. It's likely a moot point though, they don't breed in aquariums as far as I know.


They breed but there is no way of knowing what helps induce them into it and when.

[jscurrier]

Thanks. Mine are a bit shy of 4 inches at the moment. Getting there. I'll check for that. :22: