What is the 'F' designation for a cichlid if the father is wild caught and the mother is F1? Are the offspring F1 because it's the starting point of a new diverse gene set produced from unrelated bloodlines? Or in the fish world is it considered F2?
from abvope link said:F generation numbers are to be used cautiously, since misunderstandings may occur. In cases of back cross or out crossing, these numbers are not valid anymore. In general when the fish bred do not belong to the same bloodline or F generation it is better to indicate the two F generations of that particular breeding. For example, if you cross an F2 generation male with an F1 generation female of the same bloodline, it is better to label the fry as F2 x F1. If you cross an F1 parent of one bloodline to an F1 parent from another bloodline, then the fry should be labeled as F1 x F1 and not F2. If you outcross an F1 parent with a wild caught specimen, you should use the F1 x F0 label.