178 GOLDFISH VARIETIES AND 
HAIR GRASS 
Eriocaulon septangulare, a dainty hair-like aquatic of recent intro- 
duction, fills small tropical aquaria in an agreeable manner. It is another 
of those plants forming a useful adjunct to the breeding of tropical fishes. 
It multiplies rapidly from short runners and is a good oxygenator. Of 
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Fic. 126. Hair Grass (Life size) 
a pleasing shade of light green it makes a contrasting group among other 
plants in a large aquarium, but it shows to best advantage in a small 
aquarium by itself. It grows from 3 to 8 inches and is native to ponds in 
the Middle Atlantic and Southern States. 
