You have done very well indeed! Some Calathea don't need the high humidity. This one, Calathea binotii, is one in lower humidity. But its a large grower, tops out at about 5-6 ft tall. It seems to be the smaller growers that are drama queens
Paddle leaf calathea like this one, Crotalifera (the rattle shaker) also can make it fine with less but it too is a large grower and more resembles a Stromanthe in the leaf blade morphology
