I drilled a hole near the bottom of the tank so the water drains as it reaches two inches in depth. In addition, the soil and plants re sitting on a false bottom, so everything sits about two inches above the highest level of the accumulated water. The end result is that the soil is free draining, never water logged, and always moist.
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"We must not look at goblin men,
We must not buy their fruits:
Who knows upon what soil they fed
Their hungry thirsty roots?"
Goblin Market
by Christina Georgina Rossetti
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