What's the formula for enclosure size (H. spinifer)?

[Snowy Snowman]

Hey all, I've been into the tarantula hobby for a bit now, and I want to expand to scorpions. My local breeder has H. spinifer avaliable, and I plan to get one or a few. With T's, the enclosure formula is 3x legspan for terrestrials at least, is it roughly the same or different with scorpions?

 

[Galapoheros]

I don't see that there really is one but I guess a person could make up something reasonable. 2 gal to 10+ gallon would work. Yeah 2 gal is kind of small, finding placement for hides but it will work, even less that a 2 gal will.