I bought 4 @ That Fish Place over a year ago, They are the common Red Tail Varients. From what I've read on this site in the past, Pink Tail varients are very uncommon and will have a pink line running the length of their body. They have got to be the one of the most suprising fish I've ever owned. They are cute, appear very passive, and skittish. However they have a seemingly unexpected darkside. They are aggressive fish esp. amongst themselves. Like I said I bought 4 - they killed 2 and ate them. They are carnivorous and will chew on anything that they can get in their mouths which is kinda unsual, most fish swallow whole, these guys chew and chew as a pack. They also aren't shy when it comes to stealing live food from other fishes mouths, I see it all the time. They mostly just hang right under the surface of the tank, but do use the whole tank when searching for food including things on the bottom. Something else I found suprising - they get kinda bulky, robust for their body sizes and shape - remind me alot of GATF in body mass without the obnoxious length, height, and teeth.