Loved for their intricately patterned leaves and bold colours, Calatheas make a great statement plant wherever they're placed.
Calathea's like a moderate amount of indirect light. Too much and you risk damaging its gorgeous patterned leaves. Too little and the plant's health will suffer and its growth will slow down significantly.
Brown spots and crispy edges indicate a thirsty and dry plant. Use a moisture meter or stick your finger down to the second knuckle into the soil. If your finger come out dry then it's time for a drink. If your finger is covered in wet soil then it's best to leave it alone.
Faded leaves indicated burnt or bleached leaves due to too much direct sun. Move your calathea to a shadier spot where it can get bright indirect light.
Calatheas are prayer plant and so they naturally droop (or bow) during the evening before lifting upright again during the day.
Irregular drooping paired with other problems can also indicate inconsistent watering, temperature stress and pests.