Even in Texas, I think some people stock TF Shad every year.
Before I ever put HSB in any of my ponds, I was generally against it as I deemed HSB to be 'unnatural.' My fish guy convinced me to try them, so I put only (5) in my 4.5 acre pond. This was in the Fall of a year. That next summer, way out in the middle of the pond, I saw a 10' diameter of water basically boiling.
I yelled out to my brother who was out in a boat, and he made his way over to the action, and hooked up with several of the HSB.
I've been a believer in HSB for almost 15 years now.
Gizzard shad can be OK if you have enough large bass to eat them and keep them from over populating.
Any concerns about impacting your 'ecosystem' are valid and as such, my thoughts are to stock smaller numbers and see what happens.
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