I must say that I find Sirens very appealing after seeing some video footage of them. How do you find them as pets, Jake?
Sorry if this sounds really stupid, but I don't think I understand what you're asking here.
If you mean how do I go about aquiring them, then the answer is I just wait until friends of mine get them in random orders of tropical fish, the first ones I got were from a girl on the forum who got them in a "package deal" on aquabids.
However, if what you're asking here is what is my opinion on sirens as pets then I think there's only one word to sum it up...Amazing!
They are by far one of the most interesting animals I've worked with. The healthy adults are almost always active. They're about as hardy as axolotls or tiger salamanders. My adults have been eating a diet of about 80% trout chow and 20% nightcrawlers. They are extremely fast growing. For example, I had a group of five that were from 3.5-6 inches long about a year ago, and now they're all just about 12 inches. I love to give them plenty of rocks and other objects because they are very interactive with the environment they live in. If you put one adult in a 250 gallon tank I would be shocked if it didn't use every inch of the tank. When I first get them they all seem very shy, but after they figure out that I'm not going to shred them up and eat them, they tend to mellow out a bit.
I have a couple siren videos floating around on the net somewhere, but they're pretty short. I want to get a few more vids because there's never a dull moment when you've got a siren in the house
Hopefully some of these eggs are fertile, and I'll have some c.b.'s later in the year, but I'm not holding my breath on it.