Hypo is short for hypomelanistic...."ghost" is just a nickname for the hypomelanistic look. There are different types (lines) of "ghost" such as orange ghost or green ghost. As I understand it, there are some lines that aren't compatible. However, "orange ghost" is by far the most common form of hypo out there. If yours were something different, it would be most likely be labeled as such and probably a little more expensive.
SO....bottom line...there's a very small chance the two het hypos might not be compatible with each other, but most likely they are.![]()