Gap between 2D physics rigid bodies?

Is there any way to get rid of these gaps? I use meshes to paint polygon colliders, so there is no sprite that I can scale up/down. It seems as if the physics engine is not exact.

See images below:

36045-gapunity1234.png

I’ve had this problem before and I think it is a value in edit>physics2D
I remember there being a gap because it prevents clipping but try messing around with the values until there is no gap. Alternatively , you could make the collider smaller in scale for the rocks.

I solved it by making a script that scales everything by 10.

It also works if you put the game objects in a GameObject with scale 10, and then set scale to 1 on all your objects.

It is a problem with Physics2D and Box2D, so it is not solvable in any other way.