Hi, thanks for all the compliments. The fissidens is growing in my 4-feet planted tank. The temperature of my tank varies between 26.5 and 27.5 ºC. So, you do not really need very low water temperature for it to thrive. My tank is supplemented with CO2, the pH fluctuates between 6.2-6.8. From my observation, it grows better under direct light in my 2.6wpg tank then under shade. A key difference between fissidens and mosses is that fissidens does not branch as much. Once established, it will form a nice and neat coat on the driftwood you tie it to, the fronds growing vertically much like erect moss. It is a slow-growing moss, reaching a length of only about 3.5 cm in 2-3 months time. The good thing about this is that once it has establish in your tank, you can just sit back and enjoy, not worrying about re-tieing it very often. However, this is also the reason why it is expensive. If you anyone is interested with this moss, please pm me. Below is a photo of the full tank. It's a little out of focus I am afraid. What I am trying to create is a place where an old moss forest meets the open grassland. Please feel free to comment.
Cheers

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Chee Pang
