. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. a time, but a fresh solution should be made daily. An entirely different kind of fin congestion is sometimes prevalent inthe Fall, especially when the fishes are first taken in, young fishes beingmore liable to attacks. The base of the tail and other fins becomes sud-denly blood-red, the color sometimes extending to the body immediatelyadjoining. If allowed to continue this form of the disease is rapidly dis-astrous. Fortunately, it yields with surprising quickness to either saltwater or perman
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. a time, but a fresh solution should be made daily. An entirely different kind of fin congestion is sometimes prevalent inthe Fall, especially when the fishes are first taken in, young fishes beingmore liable to attacks. The base of the tail and other fins becomes sud-denly blood-red, the color sometimes extending to the body immediatelyadjoining. If allowed to continue this form of the disease is rapidly dis-astrous. Fortunately, it yields with surprising quickness to either saltwater or permanganate of potash treatment. When alternatives to salt-water treatment are suggested, the fancier will certainly be on the safeside by giving the salt the first trial, particularly if carefully followed outas we have directed. White Fungus. This is next to the most common disease amonggoldfishes, and is responsible for the majority of deaths, except amongvery young fry. It begins on the tail and other fins, extending over thebody and into the gills. When it reaches this stage it is usually Fig. 97. Fish Affected With White FungusThis illustration is characteristic of sick fishes in general. The fins are foldedand drawn together and the general appearance is one of listlessness. The progress of the disease is marked by the development of a white scumwhich destroys the fins, prevents the natural functions of the skin, andwhen the parasite enters the gills causes death by sufifocation. The latterstage is not always reached, the fish often becoming so emaciated as to diein the second stage of the malady. The bacteria causing this disease arepresent in virtually all water, but can make no inroads on a fish in goodcondition, A weakened fish once infected will breed so many bacteria that 148 GOLDFISH VARIETIES AiN^D they can successfully attack the remaining well fish. White fungus, there-fore, is contagious, and the sufferer should be removed from its fellowsat once. This dise
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