thank you all so much.
i have mine submersed on huge rocks with nylon hair net tied around it, and the excess cut off. you cant notice the net at all, looks good. I've tried to do some searching on this beautiful plant, and have never been clear on if riccia needs c02 to live or just to thrive. as well as how much lighting a day or what watts. it seems to be looking a little brownish, or loss of the rich green in some areas. the fish seem to really love it! I'm trying to stay away from dealing with the c02 prosses. well if anyone has any more info on it, please pass it this way. it will be appreciated. thank you in advance.