When to Water
Medium Frequency - Water When topsoil is dry 

Check the soil moisture level every 5 to 7 days.
Remove some of the pine bark on the soil and stick your finger or stick 5-7cm deep into the topsoil to see if it is dry. [if there are no soil stick in your finger or stick, it means the soil is dry]
Depending on the actual environment and plant conditions, adjustments may be needed.

The watering schedule may be less frequent during the winter month

Watering Volume
When you water, you can use 800ml as a testing point for floor plants and 250ml for table plants, evenly pour over the soil (not necessarily to remove the pine bark).

Check the saucer and see if there is any water in it. If yes, that means enough watering.

Watering Remarks
#Don’t forget to remove the excessive water in the saucer, a absorbent towel may also help, to avoid mosquitoes breeding.
#Mist your Calathea Medallion plants often to keep it happy and healthy.

This plant prefers 

# Indoor with sufficient artificial light
# Indoor with sunlight
# Outdoor with shade

How to Prune

# Cut the yellowish part when part of the leaf turns yellow
# Cut the leaf with the stem when the whole leaf turns yellow

When to fertilize
# After taking the plants home for 3 months
# Preferably in spring, summer and autumn only (due to the growing cycle)

How to fertilize
# Different plant foods have their own concentration, please refer to their instructions (see organic plant food)

Fertilization remarks
# Overusing plant food can cause root damage and may kill the plant

Prevention
# Remove excessive water after watering
# Remove fallen leaves
# Apply pest repellent regularly (see organic pest repellent)

Cure
# Apply pesticide (see BioKill Universal Insecticide)
# Try to find out the source and remove it