Spikemoss is a plant that can only be used in damp terrariums as they must have a constantly damp soil and high humidity. Given these conditions then they will tolerate bright light or light shade but must not be exposed to drying, hot light from spot lamps. Stagnant air will cause them to quickly rot and so good air flow is essential. If they like the conditions then they will grow rapidly, forming thick carpets of luxurious green foliage. These plants can only be used with small animals as their delicate nature means that they are easily damaged.