Giant Duckweed (Spirodela polyrhiza) - Aquatic Floating Plant

Giant duckweed (Spirodela polyrhiza) is a larger, showier cousin of common duckweed, perfect for beginner and experienced aquarists alike. Its bright green, rounded leaves are several times bigger than Lemna minor and form a lush floating carpet with dangling roots that look beautiful in any tank, pond or paludarium.

Giant duckweed offers numerous benefits: it absorbs excess nutrients such as nitrates and phosphates, reducing algae growth, and provides shade and cover for shrimp and fish. Shrimp love grazing on the biofilm that forms on its roots, making it a great natural and enriched environment for healthier colonies.

It grows quickly, so regular thinning is recommended to prevent excessive surface coverage. With minimal effort, it becomes a valuable addition to aquariums, paludariums and outdoor ponds alike.

These portions are aquarium-grown in a controlled environment, free of duckweed contaminants (other species) and snails to the best of our ability. Hitchhikers may occasionally occur.

Plant Info
Type: Floating
Origin: Worldwide
Growth rate: Fast
Size: 0.5 - 1.5 cm (leaf size)
Light demand: Low to High
CO2: Not required