36 Fresh Water Aquarium 



will root readily and without much care. 



They will not, however, thrive well in hard 

 water containing lime. Cabomba rossefolia 

 falls an easy victim to vegetable parasites 

 such as algae. 



Mermaid 1 Weed (Proscrpinaca palustris) is 

 a graceful aquatic with finely divided leaves, 

 arranged around the stem in alternating 

 order. 



The stems are slender and pliable. It will 

 show to best advantage when planted not 

 in bunches, but in single stems. It is a 

 good oxygenator and grows very well in 

 gravel, and better in winter than in summer. 

 It is found very abundantly around Philadel- 

 phia, but is also wild and more or less com- 

 mon throughout a large part of the United 

 States. 



Willow Moss {Fontinalis antipyrctica) is 

 the best of several varieties which are rather 

 difficult tc distinguish. It is well known as 

 a good aquarium plant. As it is one of a 

 limited number of aquatics, which remain 



