[cypher]

Can you resize your photos? It's hard to see when they are this big!
I would agree about the tubes though, if one becomes dominant which it most likely will then it could easily trap the less dominant robo in those tubes & if fights break out which is always a possibility it would be very difficult to get to them before serious injury occurred. They may live happily together & not fall out, not all pairs do, but it is always something to bear in mind & best to take care to give them a set up that won't encourage either to become territorial over parts of the cage or trap the other in a spot it can't easily escape from.