The pot measures 11cm in diameter, the leaf span is 55cm.
I grow under lights, very blueish light with 4 T5 bulbs @ 80W and 3 250W HQI for 2-3h a day in summer.
Temp 18-22°C in winter and 25-30°C in summer (daytime).
Watering is the most important factor for anitum. Keep it wet, not humid, wet. All my anitums stand in a tray I fill at 1-2cm, let it dry for 1-2 days (after all the water evaporated) and refill it. So it is actually very easy to water them correctly from the bottom.
Fertilizer is also a critical factor, since anitums tend to stop their root growth when you fertilize them. I only fetilize 4-6 times a year with a 1/4 diluted fertilizer and that is enough for anitum to grow perfectly. When I started with anitum 9 years ago, that was the main problem for me and I didn't want to accept that the plant did not grow as fast because I overfetilized it even with 1/4 concentration every other week. When fertilizing only a few times a year you can use a 20-20-20 fertilizer or similar with different N forms and let anitum take what it wants. (And please don't mess up the thread with fertilizer theory etc.etc. That's the way I do it, it is working well for me and might not be the only way to go.)