Minimum enclosure size for 3 ghosts?

[BipedalApe]

H,

I’d like to house 3 ghosts together. I purchased an 8x8x8 Exo Terra but was told that wasn’t big enough. 

What’s a minimum size I should have for 3 (all female) ghosts?

 

[MantisGirl13]

It would depend on the instar, but if they are older a 10 gal or a little smaller would work well.

- MantisGirl13