Do not force them to study at designated places or they may not be able to concentrate. Always sleep with your bed against a flat wall so as to get support from your family members and also to have a good sleep. The ceiling light in the bedroom should not be in the centre of your bed as it gives out heat. This is considered bad for a couple. White light is more acceptable than warm light.
Warm light is yellow and it represents fire.
Do not live near factories or any electrical building, eg. a power station. Hang a metal wind chime to weaken the fire from these buildings. Please be careful as to where you hang your wind chime as wind chime will attract spirits if it is hung near graves or trees. Fish tank cannot be placed anywhere you like, and especially in the west direction. It is not advisable to have a fish tank at all.