What age should eastern blue tongues be separated?

[Talanthas]

Decided to get a couple of baby blue tongues and ended up with four. I was told at the time that they would be fine in a 4ft enclosure so long as there was enough hides. They are all a few weeks old born within a few days of each other. Currently they are all together in a 4ft enclosure with multiple hides and deep enough substrate to bury themselves in. How soon do I have until I have to separate them? Obviously 4 can't work in a 4ft enclosure long term. I don't have the spare cash to just go and get a new enclosure I have to save. Hopefully I'll have enough time before they start mauling each other.

 

[sukottom]

Have a look around for suitable temporary enclosures during council throw outs... We have a really old Ansett Air freight dog transport that we will use in a pinch for temporarily housing wires rescues...