How do you keep terrestrial isopods that live on the coast?

[Imch4]

I would like to breed Ligiidae and Tylidae, but I live inland and do not have easy access to seawater or beach sand.
Is it possible to keep Ligiidae and Tylidae without these?
If so, I would like to know what I should pay attention to.

 

[Salmonsaladsandwich]

At least some Tylos species (and Helleria brevicornis, which isn't even associated with beaches) can apparently survive fine without seawater.

 

[Isopods others]

You can salt water prepared already or stuff to mix from any fish keeping shop

 

[Imch4]

You can salt water prepared already or stuff to mix from any fish keeping shop

Which is the best way to provide salt to the isopods: mixing salt into the soil, soaking the soil in salt water, or spraying it on with a mist?

 

[Isopods others]

Certainly not mixing with soil, I spray mine I would think that's best

 

[Imch4]

It is still not a good idea to mix it with soil.
I will try spraying it. Thanks!