Hey Wicket, just curious, how long have you had the riccia floating? I just got some, today, and I have it floating under the lights too. They are stock lights. I was hoping they would hold on until I get my new fixture (about 3 weeks).
I had it in there for about a week, I have DIY CO2 and I dose Flourish every few days, no Excel. I just have some basic light, but its right at the surface so would that bleach it?
Also, is there anohter plant I can use that gives the same look as riccia? I had mosses before, but they grew way too quickly, so something that requires a lil less maintenance in terms of growth would be ideal.