I'll try to find the link. When I found this out I was a little sad at the fact so I was typed it in and was surfing over various pages. Looking for a way. I know one said it was a hereditary trait therefore like the color morphs. You should be able to prove or disprove it by breeding it to another stargazer. I may be wrong so feel free to correct me. But if you breed to a known het stargazer and don't get any. Your snake shouldn't be stargazer. However all the little one you just produced would possibly be. So in hind sight that seems cruel to do that just to cull them because of the possibility of them being stargazer