The mermaid's fan forms a thin, fan-shaped blade on a short stalk, usually greenish grey from the lime the alga stores in its tissue. It too anchors itself in the sand with a root-like structure and therefore does not belong on rock.
It grows slowly and needs stable calcium and alkalinity values, moderate light and gentle flow. Herbivorous fish and urchins may graze it down, so choose its neighbours carefully if you want to keep it.
Add this species to your inhabitants, with count and photos, and see the care info next to your own water values, target bands and reminders. Free, no account, everything on your own device.
