Pencil fish

[chua]

Hi all,

Recently, i went to a LFS and buy a few golden pencil fish.

But i found that the golden pencil fish has two different colouration.

One is the normal black and golden strip while the other on top of that has a blood red colour on the tail and the fins.(I am pretty sure that it is golden pencil fish and not 3 strips pencil fish. Confirm with the shop keeper and after searching through the net)

So what is the different between the colouration?

Thks

[danny]

The darker color are males.