My friend Kristin got two fish today for her office. One is black and the other is gold. She also got some fake underwater grass that glows in the dark. I think instead she should have bought transgenic mutant fish that glow in the dark. They really exist. Take a look at this SFGate article: One fish, two fish, red fish … blue fish?. Apparently transgenic fish are illegal in California, but not here (Massachusetts) and not in Nevada. So if a transgenic fish is swimming in Lake Tahoe, do the California authorities make sure and corral it onto the Nevada part of the lake?