Easy to grow indeed on both and rather slow growers so patience necessary. I happen to love java moss and have had much success with them. I've grown them with regular flourescent bulbs but as mentioned above, they will grow in long strands with this low lighting. I've grown them in a patio room with only natural light...works better than the flourescent bulb. High lighting seems to work best...moss comes out thick and lush. However, with high lighting and a new setup, hair algae grows with the moss and can appear unsightly. I find a few squirts of hydrogen peroxide on the affected area takes care of the problem.
Moss wall progression:
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My favorite application is a moss tree...note, minimal amount needed to start and wrapped with thread:
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