spring tails

Ahoy, dendomateys! Total beginner here (I actually don't even have any of my setup yet, just doing lots of research) so I'll probably be posting here a lot in the coming weeks and months. My first question is about invertebrate cultures. It seems like a lot of advice I can find online is...

I bought a culture online, I was just curious if i could transfer some of the culture to a container with Eco earth? And if they could start a new culture on it? If not what is a good(cheap) substrate that works well. I know charcoal does. Thanks