Anyone here have them? I have a friend (well actually my BF's friend) who raises them, and I always thought it sounded a little gross. But I saw them the other day, and so cute! And not at all slimy like I expected. So now I'm thinking of getting one, but am curious as to how much money it will cost to start (tank, light, etc.) and how much it will be in the long run (food). Anyone have any info?