Billy,
My HSB were two + pounds when the gizzards were stocked. Now, some are about 4 pounds. I also have Florida LMB in the same pond, some of which are considerably larger than the HSB. The gizzards are much more temp tolerant than threadfin shad. I've tried to establish threadfin twice and could not get them to take hold.
From reading posts on this Forum from guys that have had some success with threadfin, I believe my problems were size related, i.e the threadfins I was sold were too small to reproduce before being consumed.
The gizzards I stocked were 3 to 4 inches. They seem to be doing just fine. About a year ago there was an excellent article on gizzard shad in the Pond Boss mag. Also some good discussions on this Forum about them...but interestingly very few people have tried them in ponds for fear of the take-over by large gizzards in the pond. I have simply seen no indication at all of that happening; my gizzards do not live long enough to get large before being consumed.
