I have had 2 flavs for 6 months and they have grown very little compared to other synos. They are treated the same as any syno although they seem even more shy and want a hiding place all the time.
Check out planet catfish. They aren't that hard to find, at least in my area. One of my LFS can get them whenever they want. I am sure that one of the sellers on here could get you some. Also if I remeber right I believe www.thatfishplace.com has them.