Do not soak pak choi seeds
Sow the seeds on your prepared Nubox surface and cover with a very moist paper towel. Place a weight in the top tray. Leave for 3 to 4 days until the seedlings have built a good root system and push the top tray up about 1cm.
On day 3 or 4, remove the weight and flip the top tray to create a blackout dome. Leave for one day to allow seedlings to straighten up and stretch slightly.
After 24 hours place your Nubox on a windowsill or under another lightsource.
Bottom water by lifting the green tray up and pouring approximately 100ml of water into the base tray. Wait 10 minutes for the water to absorb fully before deciding to add more.
Be careful not to overwater as waterlogged roots will kill off your plants.
Harvest from day 8 onwards.