The one best food for practically all 

 aquarium fishes is the living Daphniit. a 

 crustacean about the size of a flea, which 

 is found the world over, principally in 

 still ditches. Articles on this delicate 

 morsel have appeared in The Aquarium 

 during the past year, so I shall not write 

 further on that. Another inhabitant of 

 still water is the mosquito "wriggler." 

 This is a wonderfully fine goldfish food. 

 After they are large enough to swallow 

 them, the young goldfish grow more 

 rapidly than on anything else. An 

 occasional meal is greatly appreciated by 

 the large fish, and to see them so rapidly 

 eaten partially compensates for the 

 bites one usually gets while collecting 

 them. 



Among; living foods should be men- 

 tioned the freshwater shrimp. These 

 occur in many brooks and springs. I 

 have never seen them in large quantities, 

 but they are desirable and should be 

 taken whenever opportunity offers. The 

 Germans dry sea-shrimp and use it as 

 the principal part of their foods for all 

 fish. They export large cjuantities of it 

 to America and other countries where it 

 is reduced to smaller sizes and used 

 largely as goldfish food. It is to be 

 highly recommended for this purpose, 

 and very likely, in a few years, it will 

 be universally used as a part of American 

 composite foods. 



In winter it is difficult to get suitable 

 forms of living organic food. For several 

 years I have satisfactorily met this 

 difficulty by feeding chopped oysters, 

 using the soft parts only. After chop- 

 ping it is well to wash the particles 

 slightly to prevent making the water 

 milky. A slight milkiness is not object- 

 ionable. It soon disappears. Oysters 

 may be fed about once a week, that is 

 often enough. 



The principal point about feeding is 

 not to feed too much. No more food 

 should be given than will be consumed 



in a few minutes. In my own aquarium 

 the last particle of a feeding has dis- 

 appeared within a minute. I will not 

 attempt to give any rules on the frequen- 

 cy of feeding, but it will gauge by 

 aquarium temperature, which is a more 

 accurate method. When the temperature 

 is between 40 and 50 degrees Fahren- 

 heit, once a week; from 50 to 60, twice 

 weekly; from 60 to 65, every other day; 

 from 65 up, every day. In warm weather 

 I feed a very small quantity twice daily, 

 but I hestitate to mention it for fear 

 some kind-hearted sinner will overdo 

 the matter. 



Successful aquarium management 

 consists in reproducing as nearly as 

 possible, natural conditions. Goldfish in 

 nature eat a variety of food. Remember, 

 this is still true in the aquarium. 



The Docile Goldfish. 

 H. G. Parsons, in the course of an 

 able defense of the goldfish as a house- 

 hold pet, says: "The pet goldfish does 

 not sit on the front porch and howl to 

 beat four-of-a-kind. He does not jvimp 

 on the kitchen table and cop out a 

 pork chop. He does not pull down the 

 lace curtains or sleep on your best hat. 

 There are several other things wherein 

 the goldfish could prove an alibi." 

 Kansas City Star. 



The rearing of carp is a very ancient 

 practice, a treatise on the subject by a 

 Chinese dating from the Third Century. 



On February 26th, at the meeting of 

 the Philadelphia Aquarium Society, Mr. 

 W. T. Innes, Jr., will give a talk on 

 "Some NewerDevelopments in Aquarium 

 Heating." 



The catfish family is very large and 

 widely distributed, numbering about 

 seven hundred species, occuring in fresh- 

 water, in all parts of the world, but is 

 most abundant in warm climates. 



