I think you're confused about what the term "het" means.
- A "het albino" looks like a normal ball python, yet has a 50% chance at passing along its albino gene to its offspring.
- An "albino" actually looks like an albino and is guaranteed to pass along its albino gene to its offspring.
When breeding, you must start off with both parents carrying the albino gene to have a chance at having visually albino babies.
- A visual albino x visual albino pairing will give you a 100% chance at visual albino babies (all will be albinos).
- A visual albino x het albino pairing will give you a 50% chance at visual albino babies.
- A het albino x het albino pairing will give you a 25% chance at visual albino babies.
I hope this helps!