I am not sure those are fathead minnows. For one item FHM never have a dark spot on the caudal peduncle. From the poor quality pictures to me they look to have more body features of a California roach Hesperoleucus symmetricus. There are some varieties of the species that qualify them as official varieties or subspecies of the species. Better close up pictures with good images of the head shape and good side body views will help with a more positive ID.

Last edited by Bill Cody; 03/29/24 07:54 PM.

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