I use traditional S/H culture. The reservoir holes are about an inch/2.5cm above the bottom of the pot. If I'm busy and can't get to watering the reservoir usually holds water for more than a week in my conditions. Plants grow more rapidly in S/H if watered frequently. I wish I had time to water more often.
What you show isn't S/H because there is no reservoir. You're using standard potting with LECA as the medium. Growing like that you'll need to water very frequently.
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