Get a male heterozygote, breed him to a normal, and then breed him to all his daughters. You could use a female heterozygote, but then you could only breed her to one of her sons.

If you keep and breed only one baby from the first generation, you may accidentally pick a genetically normal individual. Raising and breeding several daughters raises your chances of getting at least one heterozygote. Don't give up on a possible heterozygote until you get 17 normal babies without any albinos.

Good luck.

Paul Hollander