It takes quite a few years (12+) and lack of adequate predation and little if any supplemental stocking of HBG for the HBG population to revert to mutt HBG. Most fish farms do not follow one specific stocked population of HBG very long to know about long term development.

Last edited by Bill Cody; 05/04/15 01:13 PM.

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