I need your help with my Riccia fluitans. I've tried several times to keep this plant alive in its emersed form but I failed. The story goes like that: For the first 3-4 days the emersed riccia is pearling like grazy and the color is as is should be - light green-. During the next few days pearling gets less and less till is stops completely. There's no more grow (it doesn't decompose though) and the color gets very dark green.
The parameters are: 15 lit minature tank PH 7.0-7.2,lighting 2 x 35 W Halogen lamps, PMDD fertilizer with extra KNO3 and Fe EDTA, CO2 80 bubbles/min, water change 30% every three days, GH 8 KH 14.
Thanks in advance