These are from the game Happy Aquarium on Facebook...its one of two games I play on there, and this is by far my favorite creature in the game. And actually, its what inspired me to get some real axolotls of my own...which I'm still setting up for, will probably get them when the weather cools down a bit.
Just wanted to make myself a profile ID with this little screen cap I got from the game. I didn't make them, that credit goes to Crowdstar.;) Also currently my screensaver, tiled so there's a whole swarm of them on my screen!