Water Sprite (Ceratopteris thalictroides) is an aquatic fern found in many places around the world. It’s often found rooted in muddy areas on the floor of lakes and ponds.
It is a soft leaved green plant with numerous fronds, which make for perfect cover for smaller goldfish and newly hatched fry.
While Water Sprite is usually planted into the substrate of the tank, it can also be left floating freely.
The plant has a fine and delicate root structure and gets its nutrients from the water rather than the substrate. It generally grows to around a foot tall.