HEATING THE AQUARIUM 



EDGAR TALLMADGE 



A. Frame of "storm windown" 



B. G| a ,s 



C. Radiator between aquarium and glass B. 



D. Heating coil 



E. Heat-retaining cone placed around coil 



F. Expansion tank 



G. Bottle inverted in tank to regulate expansion 



The question of heating aquaria con- 

 fronted me at the commencement of win- 

 ter, and no doubt other lovers of tropical 

 fishes have been perplexed by the same 

 problem. To those old at the game, or 

 more fortunate in having a room heated 

 to and kept at a given temperature, this 

 will not make interesting reading, but to 

 those not so fortunate my experiments 

 may be of value and possibly lead to an 

 even better method. 



When I recalled my previous experi- 

 ences in heating the room in which I 

 have my fishes, I felt no little concern 

 for them. However, as it was the only 

 room in the house affording the proper 

 light, it was up to me to furnish the neces-. 



sary heat for my tenants. I inquired of 

 the older members of the society and had 

 shown and explained to me all the known 

 and tried systems of tank heating. I 

 selected one that seemed best suited to 

 my conditions. It was the hot water 

 system that enters at the top of the tank 

 and drops to the bottom, then returns 

 over the top again to drop to the heating 

 coil. I constructed one and tried it out 

 before putting it into the tank. It worked 

 so beautifully that I began to figure how 

 to keep the fishes from burning them- 

 selves as I pictured them gathered around 

 to keep warm. Alas ! All my hopes and 

 schemes were shattered, for as soon as I 

 placed the radiator in the tank, and it 



