Alocasias thrive in medium to bright, indirect light. Low light will leave fading spots on the leaves and direct sunlight will scorch them. Place your Alocasia near a north or east facing window and avoid cold draft at all times. They prefer their soil to be on the drier side but love humid environments, mist regularly, maybe even a couple of times during the day. It would be ideal to invest in a humidifier if you have a lot of tropical plants. Over winter, Alocasia will go slightly dormant and at this time it’s best to place them in a warm environment, ranging from 18-25ºC, away from drought and cut down on water to prevent root rot. Allow the top 2” of the soil to dry out between watering.
Alocasia do love houseplant fertiliser, whether in liquid form or powder mixed in water. In Particular Stingray could go a few more months (to October) with fertiliser once a fortnight.
Alocasia leaves sweat and secrete small droplets by the water accumulating in the plant and causing a slight overpressure in the root. This pushes the water out as small drops from the leaves. This is a sign of health for the plant, but the drops leave stains on furniture and floors where it stands.
Problems
Yellowing or spotting leaves - overwatered
Browning edges - under watered or direct sunlight
Fading leaves or slow growth in autumn/winter - Dormant, reduce water
Webs on the soil - infrequent watering invites spider mites. Clean the top of the soil and use neem oil