Anacharis: Fair oxygenator—planted or floating—needs abundance of light.

Ludwigia: Fair oxygenator. Leaves—top green, underneath red.

Sagittaria: Excellent oxygenators, three varieties: NATANS—long narrow leaves; GIGANTEA—broad stocky 8 leaves; SUBULATA—(dwarf) 4 to 6 narrow leaves.

Cabomba: Little value as oxygenator—fanlike green leaves.

Hair Grass: Fair oxygenator—rapidly covers floor with 4 grassy needles.

Southern Spatterdock: Ornamental—broad bright green leaves.

Vallisneria: Excellent oxygenator—15 long—multiplies rapidly by runners.

Myriophyllum: Ornamental—excellent for spawn of adhesive egg layers.

Salvinia: Floating—¼ leaves covered with velvety hairs.

Duck Weed: Ornamental bright green floating plant.

Riccia: Very fine bright green floating plant—valuable in spawning bubble nest builders, especially Dwarf Gourami.

Cryptocoryne: Leaves top dark green, underside dark red. Needs some soil, slow grower. Very decorative and necessary in spawning some species.