which one

[infernalis]

A lot of people may say "cage size does not matter"; until they realize the ACTUAL size required for either of these species.
Chris

Cheers to that!!

My Savannah Monitor Cage takes up half a room, would require a forklift to move it, and I can already tell when these babies get bigger, it is going to be too small.

Both species of Lizard you are asking about are roaming foragers, in the wild they can and do use miles of territory, so be prepared to provide unbelievable amounts of space if you want healthy animals.