Thanks, guys! It was a neat experience and I think less stressful on Dahlia than removing her eggs. Many if not most BPs settle right down if cleaned off placed in a fresh tub right after laying -- this particular female might be extra "broody."
About a day I think, once she started crawling away from the clutch and stopped trying to roll babies back into the pile. I had actually wanted to wait until she was clearly coming out of mom-mode.
Her corralling the hatchlings was the only thing I didn't expect. If nothing else, I want to try MI with other females to see if they show the same behaviors. If I do, I'll post results![]()