It's empty to give me perspective lol . Like as the op said one of there go 2 plants the spider , it's a fast growing large plant , but imagine if you put that in an 8 inch pot ?

in my viv 2x2x4 same as yours , soon there while be no room , we can ( not me and you ) determine how our plants grow up down , whatever, that spider was root bound , I didn't repot it I cut the roots down, lol I realy like and had many plants b4 chameleon ,so it's just a matter of making my plants work for me , like look at bonsai, having great healthy plants in a smaller environment than they are used to ,