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Specialty Gardening: Gunk Along the Bottom Edge of Soil in Terrariums, 1 by jeffnyc

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Subject: Gunk Along the Bottom Edge of Soil in Terrariums

Forum: Specialty Gardening

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jeffnyc wrote:
Hello,

Despite using plenty of activated charcoal, some of my terrariums seem to develop algae and dirt particles along the bottom edge of the soil (see attached image). The terrarium gets plenty of air.

Does anyone have any suggestions?

Sincerely,

Jeff