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^ Chapter Nineteen 



In Snort 



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Don't overfeed. 



Don't overcrowd. 



Don't use very deep aquaria. 



Don't delay treating sick fishes. 



Don't start \\ith ex]5ensive fishes. 



Don't expose an aquarium to coal gas. 



Don't use fishglobes except temporarily. 



Don't attempt tu move filled large aquaria. 



Don't fail to replace covers on tropical aquaria. 



Don't always blame the dealer if your fishes die. 



Don't keep very large and small fishes together. 



Don't use coarse nets. Brussels netting is better. 



Don't lea\'e the fish (jutdoors until frost threatens. 



Don't introduce plants without thoroughly cleansing. 



Don't heat with oil stoves if anything else can be had. 



Don't fail to sterilize a net after lifting a diseased fish. 



Don't entrust the feeding to another if this can be avoided. 



Don't be too sure the family cat won't fish in the aquarium. 



Don't as a beginner disregard the greater experience of others. 



r3on't sell surplus stock for a song. It had better be given away. 



Don't slide all-glass aquaria. Scratches may cause them to break. 



Don't forget that most fishes enjoy an occasional variation in food. 



]3on't assume that ordinary artificial light is a substitute for daylight. 



Don't experiment with rare tropicals to see how cool they may be 



kept. 

 Don't suddenly change the temperature of the water, either higher or 



lower. 



