Pond Boss Forums STOCKING A NEW POND Creating the food chain Can anyone ID these minnows?

I'm with snipe for identification of your minnows. I still think your minnows look more like California Roach than FHM. Notice in your pics the minnows have the lateral dark stripe similar to CA roach. Same as snipe says - Dorsal fin of your unknown minnows is not the correct shape for FHM although FHM are introduced and expanding their range in CA. Plus the unknown minnows do NOT have the 2nd short rudimentary dorsal fin ray thickened & separated from the 1st dorsal ray by a membrane as do FHM. Try to get some good close up clear body profile images. A good close-up head profile of the head will verify ya or nay for FHM. Again the side body spot at the back of the caudal peduncle says no for FHM.

For good identification we need better pics than these pics of the CA Roach.
https://www.inaturalist.org/taxa/67610-Hesperoleucus-symmetricus/browse_photos