I voted Other in favor of real taiwan moss. Grows lush and beautiful, doesn't collect poo and dirt like java does. Other than the fissidens which I'm not 100% sure about, none of your choices grow roots. They all have to be tied to the wood forever. I tried fissidens and couldn't get it to grow well in my deep tanks. I currently keep the taiwan and java mosses and even my shrimp prefer the taiwan. It even looks cushier and actually has a branchy look to each piece.