Anacharis

Egeria densa aka Brazilian Waterweed

These dark green fern-like plants can either be floated or anchored by roots in the bottom of the pond.
They are fish proof. They have long stems with linear pointed leaves that measure up to 1 inch long by .10 inch wide.They are hearty growers and great oxygenators.

Zones 5-10; Full-Partial Sun.

Use 1 to 2 bunches per sq. ft. There are 5 to 6 cuts per bunch.