Apparently Rocky does like to climb. Having the camera on him has really helped me see his activities. We are working on a new larger enclosure and for now take him out to have him venture supervised around inside.
"As large as you have the room for" is always the best suggestion.You might want to check out our care sheets. Your enclosure is much too small for a Russian. We recommend something around 8 feet x 4 feet.
I like saying a hard number, as to many people "as large as you have room for" sounds more like "as much room as you want to give to them", which means they'll remain in small tanks. But yes, as big as possible is a better suggestion."As large as you have the room for" is always the best suggestion.