afaik, they won't breed with anything really. They are paracardina. A few people have reported possible crosses but that's usually found to be not true or a 1 in a million chance.
20g platy, , 2 x 10g shrimp, 3 x 20g shrimp, 7.5g shrimp and 1 great dane/mastiff puppy.
Sump Pimp #2
My Tanks and my shrimps