Calathea
Calathea (now reclassified as Goeppertia) is grown for some of the most beautiful foliage in the houseplant world - feathered, brushstroked, and patterned leaves in greens, pinks, and purples. It also has a reputation for being demanding, and that reputation is mostly about water and humidity.
They're fussy about water quality: tap-water fluoride and salts brown the delicate leaf edges, so filtered, distilled, or rainwater makes a real difference. Keep the soil evenly moist (not soggy), give them high humidity, and keep them out of direct sun. Get those right and the crispy-edge complaints disappear. The related prayer plants fold their leaves up at night, a charming party trick.
Medium to bright indirect; direct sun fades the markings. Tolerates lower light better than most.
Keep evenly moist using filtered or distilled water
Crispy brown edges mean tap-water minerals or dry air
Feed with a dilute balanced fertiliser
Wipe and mist the leaves; keep humidity high
Divide and refresh the soil