Nice man yah I'm sure That's the way to go, i bred my pink female with black male a bunch of times and I always just got all blacks
marbled/piebald is a line-bred characteristic, not a recessive or dominant trait. Pink is recessive, therefore you need
A.) 2 Pink parents to produce ALL Pink offspring
B.) ONE Pink parent and ONE Heterozygous for Pink parent to produce 3/4 of the offspring will be Pink, the remaining 1/4 will be Heterozygous for Pink
C.) 2 "normal" (only by appearance) Heterozygous for Pink parents will yield 1/2 of the offspring will be Pink, the remaining 1/2 of the offspring will have a 66% chance of producing Pink offspring I.E. 66%-Heterozygous for Pink
D.) Breeding a Pink parent to a normal NON-Heterozygous parent will produce 100%-Heterozygous for Pink offspring
E.) Breeding a normal (only in appearance) Heterozygous for Pink parent to a normal NON-Heterozygous Parent will produce offspring w/ a 50% chance of passing on the Pink genetics. 1/2 the clutch will and 1/2 will not, however there is no way off knowing which ones carry the genetics for Pink until you breed them.
In other words, you need to breed the offspring you already produced to each other or back to the mother