Ants hanging outside tube.

[KdenKden]

I have some ants hanging outside their testtube setup in a box, does that mean there's not enough space in the tube and should i move them.

[Hawkeye]

I have some ants hanging outside their testtube setup in a box, does that mean there's not enough space in the tube and should i move them.

It probably means they're standing guard to protect the nest from possible invading dangers. If you have between 20-30 Ants you should probably let them move out, but until then you're fine.