124 



AQUARIUM APPLIANCES 



of aquarium and is raised any de- 

 sired distance from the bottom by 

 two strips of glass standing on edge. 

 Glass bars or tubes are easily broken 

 to exact length by first rubbing a 

 nick with the edge of a fine file. 



The original purpose was for the 

 spawning of fishes having non-ad- 

 hesive eggs (Danios principally), but 

 the idea is applicable to the live-bearing species also. 



Spawning Net. In the spawning season aquarium space is often 

 limited, particular!}' among amateur breeders who have perhaps a single 

 aquarium. The breeding fish should be separated from the others, as 

 the idle fish would eat the spawn. An easy way over this difficulty is the 



Fig. 104. Method of Constructing 

 Mat of Glass Bars 



Fig. 105. Spawning Net 



use of the spawning net. This is simply an oblong bag of cheesecloth 

 suspended in the aquarium. The illustration will show how this may be 

 done. The four corners should be weighted down with bits of lead or 

 stone sewed in. The plants and spawning fish are simply transferred into 

 the net. Confined in this comparatively small space, the chances of the 

 eggs becoming fertilized are increased, while the netting is sufficiently 



