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mineral wool "turns green"
White_Greengostarted grow question 4 years ago
Over time, the top layer of mineral wool "turns green". The problem is probably that the humidifier is located too close to the plant.
I don't know.... to close the substrate from entering the light ?!
What do you think ?
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Fusionanswered grow question 4 years ago
Algae is common, comes from mositure and light. Cover the wool with a garbage bag or something similar, to block the light until plant shades it.
DeadwebsiteBoringcommunityanswered grow question 4 years ago
Your growing medium is a giant sponge and is gonna be a breeding ground for bacteria and mold.. You need more drainage.
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