Seeding a Tank

I want to get some info together as I have noticed that a bunch of DBers are interested in seeding their tanks. The most common animal used for seeding seems to be the springtail, so lets start with that. Anybody with any experiences and/or successes/failures with seeding tanks please chime in.

Springtails

Temperate or Tropical?
How many?
What kind of substrate? Does it need to include peat or charcoal? Hiding spots?
How, when, what they should be fed?

Other Seeders

Isopods?
Wood lice?

Thanks for inputs.

Luke