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I've been trying to determine my beetle replacement schedule. I need to know when to let some of the mealworms pupate to keep my beetle count around the right amount.
From another thread on this forum, I need approximately 300 beetles for the size tray I use. - http://www.openbugfarm.com/forum.html#/discussion/1351/beetle-count-question
Beetle lifespan is 8-12 weeks. I'll use 8 to be conservative.
I use a weekly/every-other-week tray rotation schedule. If the beetle survives 8 weeks, to maintain 300 live beetles I need to replace approximately 37 beetles per week. If I let ~40 pupate per week, then process the remaining mealworms, that should get me stable at 300 beetles after 8-10 weeks. At that point, ~40 will die per week, and be replaced by ~40 new pupae.
Is this strategy sound, or should I do a complete replacement of 300 beetles every 5 weeks (factor in that it takes 1-2 weeks for the pupae to become a beetle, another week before they begin laying eggs).
What do others do to get fresh beetles??