Posted: 27/05/2015 at 08:54
My daughter has a small indoor greenhouse. She has overwatered it and water has accumulated at the bottom in the gravel. She has found dozens of small white/pale grey creatures, some with purplish markings, in the gravel and on the plants, all of these are about 1 cm long. She thinks they are slugs but I'm not sure. What could they be?