Seems to resemble a species of fish called Danionella Dracula...
http://www.seriouslyfish.com/species...nella-dracula/
If you look through the 9 photos in the species gallery on that site, there are some photos which look very much like the fish in your photo.
The one in your photo has a more distinct bluish color though, maybe its a similiar species or perhaps a color variant.
Bookmarks