hi, i am planing to occupied my 8g tank with java moss and one question comes straight to my mind. I wonder if these java mosses can survive in the concentrated water(water will becomes concentrated from the accumulation of fishes's waste products, food and etc) . From what i know water will diffusses out from the java moss and eventually die( as the cell becomes plasmolysed), SO i would like to know is there any solution to overcome this problem?? THanks for the replies.