Difficulty: Very easy Light requirements: Low light. In high light it will grow more quickly, and look different, as do all of the mosses. Type: Fern. Temperature: 68F– 78F pH: 5.0 – 8.0 Counrty of Origin: Unknown CO2: Not required. Substrate: The substrate is irrelevant, as it is a water column feeder. It is not a heavy feeder, and can subsist if not fed additional ferts in a balanced tank with fish.