I need advice on my phalaenopsis orchids

[rbarata]

Your home is different... so you need to put it in a pot with some open, well-drained medium to give it both the air and moisture that it needs. So "What am I trying to achieve" must be known before you can address the "How am I going to achieve it?"

That's why I asked for the chips size...The smaller its size, the less air flow you'll get after watering.