Note that the description says they spawn in streams where they lay eggs in a depression (nest) in the gravel and then eggs are covered by the male. Water curent though the gravel of the nest keeps eggs oxygenated. It is very unlikely eggs of these fish will successfully hatch in pond conditions. To the untrained eye, real small creek chubs 1"-2" look a lot like fathead minnows.


aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management