This is incredibly niche but there's a specific way to breed beetles for maximum stats and that involves breeding at 18 days and then again at 29 days so they give birth at 30 days, however if you miss the 29 days and breed at 30 the beetles and larvae both die and you get nothing. I myself do this about once every other generation and I'm sure so do other hardcore beetle breeders so to preserve the lines of people who have been breeding these tiny little suckers for 10+ generations but are too dumb to remember to breed and keep larvae alive please let us instant birth them