Giant Danios

[randymyr]

I have four danios, along with four penguin tetras and two blue gouramis, but my question is...
Two of the four danios have, when i got them, suddenly gotten strange orange/red marks on the fins on their bellies, to the bottom half of their tail, and I was wondering if this was an issue to worry about.

 

[ox5477]

what species of danio are these? Cause giant danios have naturally orange and silver stripes

EDIT: duh... he says after looking at the topic title again...

 

[The-Wolf]

it is possible that you have some Devario chrysotaeniatus or Devario assamensis
of course it is also possible you have a hybrid too.
a picture would help