Is my Albino peppered cory a longfin?

I purchased 6 albino peppered cory youngsters about a month ago, they were only about an inch long at the time, but are growing very fast!
Now, one of them has an extra long dorsal fin that seems to keep getting longer! is he possibly a longfin that was just a late developer that slipped through the breeders net?

 

DoubleDutch - don't you have albino peppered cories?

 

he certainly does have a long dorsal fin. Pretty fish. Alison

 

I never thought about long fin cories... Now I might need some... I looked up long fin albino pepper cories and they look identical to yours. Looks like you got a steal.

 

he certainly does have a long dorsal fin. Pretty fish. Alison

Yes! I was quite surprised, it doesn't seem to be slowing down growth wise either XD He's quite the handsome little guy.

I never thought about long fin cories... Now I might need some... I looked up long fin albino pepper cories and they look identical to yours. Looks like you got a steal.

Me neither! That's why I'm quite shocked XD
He's the only one of the bunch that has this never ending fin growth spurt, it seems to be getting longer and longer every day
I have a theory that the breeder was aiming for longfins and sold the regular ones to the lfs and he just slipped through by mistake. Either way, I'm fascinated

 

Long fin peppered corys are a man made fish & are seen quite a bit in Lfs here so yes your albino could have come from those strains.
There is a natural long finned cory C. longipinnis that looks very similar to paleatus, they were crossed with the peppered to get the long fins, longipinnis aren't seen very often, at least here they're not.

 

Hahaha it only was yesterday I thought about possible albino longipinnis cause the "normal" ones are sold here quite often lately. I only doubt lonipinnis was used to get these longfins albinos cause there are also longfins in which al fins are elongated (I have one) and there are also bronze longfins that lacks a natural one. But you could be right Coradee.
My xanthist has a longer dorsal fin as well.
Xanthist
normal albino Pepper

 

Long fin peppered corys are a man made fish & are seen quite a bit in Lfs here so yes your albino could have come from those strains.
There is a natural long finned cory C. longipinnis that looks very similar to paleatus, they were crossed with the peppered to get the long fins, longipinnis aren't seen very often, at least here they're not.

I thought as much! as with most long finned varieties of fish.
I'd just never heard of them before and did not purchase them as long finned, so it was a bit of a shock to see just one of them start growing this enormous fin , he's handsome but looks even more goofy than the rest lol
Thank you for the info though, that's very interesting!
After googling C. longipinnis , they do look very similar to C. paleatus!

 

He's still only a baby, so we shall see how far this goes! haha, it appears the fin has much growing to do if it carries on at this rate, I'm curious to see what he'll look like in a few more months seeing as this happened just over a couple of weeks XD

 

Think he is a she

 

Oh! really?
Thanks! that's good to know.
These are my first corydoras ever so I'm quite unfamiliar with them ha!
How would I sex the rest? It'd be great to know how many of each I have, IF I have both