342 



Fresh Water Aquarium 



surface of the aquarium, the 

 aquarium brush (see illus- 

 tration) is very useful. Its 

 shape allows one to reach all 

 the corners no matter what 

 the shape of the tank. If the 

 coating of algae, which fre- 

 quently forms over the 

 inner surface of the aqua- 

 rium, is somewhat dense, it 

 is difficult to remove, so the 

 handle of the brush should 

 be strong and rigid in order 

 that sufficient pressure can 

 be applied in the cleaning 

 process. To remove the in- 

 mates of the aquarium be- 

 fore or during the cleaning 

 or to transfer one or more 

 into another tank, a small net with a soft 

 bag, such as is kept in aquarium stores, 

 should be used. It is not advisable to try 



Fig. 126. Aquari- 

 um Brush. 



