DON'TS FOR BEGINNERS 



Don't, as a novice, begin with a large aquarium; one of co to ii gallons 



is sufficiently large. 

 Don't, except as a hospital or temporary receptacle, use the ordinary fish 



globe. 

 Don't use all-glass receptacles as permanent aquaria, they are too liable to 



fracture. 

 Don't use an aquarium greater in depth of water than in width. 

 Don't handle an aquarium until the cement has "set" or become hardened. 

 Don't arrange an aquarium until it is thoroughly cleaned on the inside. 

 Don't clean the glass with anything but table salt when filled, or with 



whiting when empty. 

 Don't move a filled aquarium ; first decant most or all of the water. 

 Don't move an all-glass aquarium at any time; lift it clear and set it down 



gently in its new place. 

 Don't change the water when moving an aquarium ; keep it in another 



vessel and afterwards return it, filling in with fresh water. 

 Don't needlessly disturb the aquarium and its contents. 

 Don't place the aquarium in a strong sunlight if a good steady light may 



be had elsewhere. 

 Don't forget that a northeast Exposure is the best, and light on the surface 



better than strong side-light. 

 Don't exclude the free access of air to the surface by tightly covering the 



aquarium. 

 Don't keep the glass tdo free of healthy algse, except on the front. 

 Don't use unclean vessels or appliances of any kind. 

 Don't fail to exercise the most scrupulous cleanliness with everything per- 

 taining to the aquarium. 

 Don't permit the accumulation of refuse, of any kind, on the bottom. 

 Don't put the hand into the filled aquarium, when this can be avoided. 

 Don't have more than one person in charge of the aquarium. 

 Don't fail to give it a little attention every day ; this soon becomes a habit 



and will insure success. 

 Don't use deep, narrow or funnel-shaped nets nor those of coarse knotted 



twine; use shallow ones of soft Brussels netting. 

 Don't use the same net, or any other appliance, for sick and healthy fishes ; 



this is sure to spread the contagion. Scald the net frequently. 

 Don't fail to place a screen between the aquarium and the light on warm 



summer days, especially strong sunlight. Tissue paper or cheese 



cloth wiU answer the purpose. 



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