My LFS ordered three and my friend who works there called me to ask if they can be housed together. I was like, "I don't know, but I'll be there as soon as I can!". And this one looked so much different from the other two that I had to get it. I mean, three identical E-cats would have been far less tempting, but seeing that one that didn't match the others, I just had to get it.
He's in a 10 gallon quarantine right now and will be growing out in a 60 gallon tank until the bioload becomes too much for it. As for specs, temp is 77º, water is hardened with crushed coral and filtered by a huge air-driven sponge filter, visible in the photos.
There are more pics in my album, and in the question thread about cohabbing.