The AntsCanada Ant Forum's

Ok

It's around 5mm

I think I will do that next time I see them, these guys are nowhere near my home and I got tests and stuff, so it might take a week or two

I'm new to the whole ant keeping thing and just want to make sure the kind of ants I found are not dangerous ants like fire ants.

Photo was taken in Macau
2017-03-12 around 11 am
https://pix.sfly.com/xSk34a
if the photos are unclear pls tell me, i will take another one next time i find these ants