What species of fish is this ?

I was told these are X Ray tetras but they look nothing like them. I'm trying to do a little research on them but can't figure out what they are.

 

Look like bleeding heart tetras to me

 

Another video of their size relative to my other fish

 

White widow tetra or colored tetra
gymnocorymbus ternetzi

its a form of the black skirt tetra

 

White widow tetra or colored tetra
gymnocorymbus ternetzi

its a form of the black skirt tetra

I haven't seen these before but it's definitely this. Must be a newish creation... (or one I've missed, I don't have much interest in artificial fish). I'd call it a Blushing Widow.

 

its really popular in petstores here

 

its really popular in petstores here

Is it just a regular white skirt? I didn't know they were that 'blushing', or see thru.

 

Is it just a regular white skirt? I didn't know they were that 'blushing', or see thru.

hmm,not sure...all I know is that its a form of the black skirt tetra...

 

I've seen small White Skirts that were rather translucent. No one has mentioned that it is a longfin variety, as well.