This plant is beautiful, but not hardy. It needs a lot of light, and is calcerous. Also known as Tufted Joint Algae, it displays delicate bright green pompoms. As the plant grows, a new shoot comes out of the center of the tuft of green, and the fronds fall away to show a new segment beneath the new pompom. Watching it grow over time, the branchs increase in segments.
Most fish won't find this very palletable, and would be a nice addition to a planted biotope of seagrasses. It likes moderate flow, and doesn't extend problematic roots.