I put a lb of FHMs in a 95 gal stock tank last year and lost quite a few until I added some pond water and the water in the tank turned green. After that, I lost very few. I emptied the tank late last fall and started over again yesterday with a lb of FMHs, 25 RES, and 2 small CC (but not small enough).

The trucks that come around selling stocker fish generally sell FHMs.