Baby Albino Slug

Well, our albino (Lehmannia valentiana) is not the only one in the population anymore. While looking for baby slugs under a certain stepping-stone, I discovered a juvenile albino. The eyes of an adult are reddish, but this baby's eyes are so small you can hardly see them. Like all juveniles, he was searching for food, which he'll need to grow.

He's about 1 cm long when extended so he's not newly hatched (0.5 cm).

"Hello!"

"Hmm...any food in here?"

"I think I'll check it out..."

Assuming albinism is a recessive gene in slugs as it is in other animals, I wonder what the probability is for two pigmented slugs to produce an albino (since both can donate sperm and lay eggs) compared with an albino and a pigmented slug...