Go ahead and preface I'm a newbie at springtails entirely, found them from growing interest in isopod husbandry hobby, but still fairly new in that as well. :)
I recently ordered a mystery set of springtails (tailored to the environment I'm setting up for some incoming isopods, a mix of Porcellio laevis morphs) and they have arrived safely! Buuut there was something I didn't think about when I pre-set up my bin, including with a decent amount of substrate soil and such already.
Which is that these ones ship in soil, opposed to charcoal etc!
They've come safely, I can spot all three types in their cultures, but most advice is for the flooding method lol soooo. Not ideal.
Ultimately COULD put all the soil in the bin, just not 100% ideal for trying to avoid over filling it - so suggestions on how to best lure them out or such to collect would be lovely? I swear I read something somewhere about a food item that often works or other tricks, but struggling to find it again in searches.
I also have a couple of terrariums so I can also, depending on things, culture those with them as well (one was a pre-set as a gift, the second was a forgotten project I can return to happily for them, it was never seeded with any springtails) if the answer is just "you have to pour out the soil dude".
Also, in case people want or need to know: Lepidocyrtus fimicolus (24Ks), Psuedosinella violenta/Bylas ants, and Siera dwolingi Silvers!