Space is scarce in Singapore and to be able to grow some gingers at our doorstep is a blessing. So, how did we do?   We found a fish tank and frame. We used the upper level for ginger growing and lower level for some guppies. We bought a fiberglass tank cos is more durable and filled with clay pebbles. Why clay pebbles? They are perfect cos it ensures good root aeration as it does not compact over time and prevents many soil-borne insect pests. It can be used as a top dressing to prevent moisture loss and evaporation. We then create our own auto watering system by connecting it…