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.
[Illustration: {Scavengers}]
WEATHER FISH BLACK RAMSHORN SNAIL
POND SNAIL AMERICAN SALAMANDER
CLAM or FRESH WATER MUSSEL AFRICAN SNAIL
MELANTHO SNAIL