I found this old thread which seemed to be a logical place to ask another question on GSH. Do they only spawn once during a season? If so, what water temp or month in N. Illinois? I have a small population but I want to stock some more this spring. I would like to get them in before they spawn to improve the chances of establishing a larger sustainable population. I have a significant amount of under water vegetation for cover and spawning already.

[Linked Image]
Be Brave Enough to Suck at Something New!