How much tiny creatures can fit in one space?

[Hyler]

Tiny creates take up 2-1/2 ft. of space. How much can fit in one space? Thanks in advance.
Edit: One square*
Edit: Tiny creatures*

[Maezer]

Hyler wrote:

Tiny creates take up 2-1/2 ft. of space. How much can fit in one space? Thanks in advance.

Edit: One square*

Math would dictate 8 (assuming they can fly) or 4 if walking on the ground.

[Thymus Vulgaris]

I vote in favor of casting mass reduce person on ratfolk, giving us 8 per square on the ground, or 16 if flying is involved.