I figured I would post these too while I am at it. These guys are my favorites, alnog with my daughters. They are named Ed, Edd, and Eddie... by my 6 year old of course, kinda fitting since theyre hard to tell apart.
Nope no Dye in them... actually they are relitively new to the aquarium world, they were givin their scientific name in 2001, so you would have to guess its only been 4 or 5 years since they were discovered! Here is a nice little tidbit about them!