42 
FRESH-WATER AQUARIUM. 
\ 
beauty to recommend it, for it hardly survives the winter in the 
tank. A plant of the Frog’s-bit family, Anacharis Canadensis , 
is another excellent one for the aquarium. It gives to the fresh¬ 
water aquarium an appearance similar to that which the Ulva latis- 
sima gives to the marine tank. 
Having made a collection of plants, and thoroughly washed 
them, the next thing is to arrange them in the tank. This ar¬ 
rangement must be according to the taste of the collector. One 
way, perhaps as good as any, is to make four bunches of plants 
of suitable size, and place one in each corner of the tank if it is 
rectangular ; they do not then obstruct the view of the tank ; they 
take up the room which is the least valuable of any, and yet can 
be seen to greater advantage. As the plants grow the tops of the 
branches meet and form an arch of green on all sides of the rock- 
work in the centre. They may be held in position, by fastening 
to them, by a thread or fine piece of string, a small stone of 
sufficient weight to anchor and keep them in place. If this is not 
done, and the plants are left to themselves or with the ends of 
their stems simply held down by a stone placed over them, we 
shall find them continually being turned upside-down by the mus¬ 
sels, turtles, or other live stock of the aquarium.— To be continued. 
