I am going to add CNBG at my place within the next 2 weeks. I am just south of the TX/OK border and it has been 75 degrees plus for the past 5 or 6 days. My water temp is between 66 and 58 depending where you are. I think even if we get a cold snap, it won't be long enough or low enough to cause any problems. Plus, maybe I will beat the rush for fish this Spring and get a head start if there is an early spawn for CNBG!