16 GOLDFISH VARIETIES ANB 



little prisons, and by the frequent pollutions of the water by overfeeding. 

 As these globes are the cheapest form of aquarium, it seems as though 

 they are destined to remain with us, but the public could be educated in 

 the rudiments of handling them- — not to overcrowd nor overfeed, nor fill 

 to the top, nor stand in the summer sun ; and to establish growing plants. 

 If this point can be reached it is a step to the abandonment of the "globe" 

 for a real aquarium, where the chances of success are so much greater. 



Removing Dust and Scum. When the aquarium has no cover glass 

 or when there is a considerable decomposition of old plants there is 

 sometimes a scum formed on top of the water. To remove this tear a 

 piece of newspaper to the width of the aquarium. Float the paper at one 

 end of tank, lifting by one edge and draw quickly over the length of the 

 water. Repeat once or twice with fresh paper. 



Algae and Confervae. Should the plants become completely covered 

 with algse or "moss" try introducing a considerable number of small snails. 

 The large Japanese variety are not always suitable for this, as they are 

 unable to crawl on the smaller leaves. If this fails, remove and destroy 

 the plants, thoroughly disinfect the aquarium in every particular and 

 replant. Do not allow quite so much light in the future. 



There is a very long, hard confervae about the thickness of horse- 

 hair which grows into matted masses. This is quite a pest when once 

 established, as it soon fills the aquarium and enmeshes young fish which 

 usually die before being rescued. The only way to get rid of this is to 

 take up all plants, go over each carefully and see that no single thread of 

 the confervse is left. If the smallest bit remains the growth will soon be 

 as bad as ever. 



