Hiya, I don't mind you asking at all.
They were £50 for both of them, and the male is 10" long and the female 3" smaller. They will be perfectly safe from my eel, but thanks for the concern.
Normally thses fish have to be inported but I bought them from a local keeper, which is why I got them reasonably cheap.
Thee is also a Black veriaty which Are equally if not more so beautiful, and a lot more expensive.