Can heating mats be used in water culture? I don't have full water culture. I soak my roots 2 days a week, but need to increase temperature around the roots to promote new root growth. The vase is curved at the top so I think the radiant heat would be trapped. I'm just not sure if it would get too hot.
If you left a small amount of water, maybe .5"-1", there's no way it would get too hot, and maintaining the temperature of the water above ambient you'll increase evaporation and consequently humidity in the root zone.
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