Purple Root Floaters with Duckweed

Purple-Fringed Riccia, Ricciocarpos natans or Purple Root Floaters (the duckweed is lemnas minor). I can get a handful of this into a bag, or I can do a golf ball size which is roughly 20-30 floaters. It does come with duckweed in which it's currently beating out. I have them under 10 hours of the barrina starter grow light if you go any weaker I think the duckweed will beat out the purple root floater.