Yup looks like a young Red tex to me. Definatly female. It will be several months befor her colors fade into red, but she will be a beauty as an adult.
Also it looks more like a cyano, Most red tex look more like carpintis.
I was thinking about buying the other 1 he has, but I think you can only have one by itself in a tank. Its the first time I have seen red texas here in NFLD. I had to have one.