. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. TROPICAL AQUAEIUM FISHES 73 the form of a ring with a roof over it, leaving only an opening for thefemale to enter to deposit her eggs. The nest is glued together by a stickysubstance exuded from the body of the male fish, who assumes a brightred color in parts of the fins at this period. After the female has depositedher eggs he drives her away, looking after the nest and young himself untilthey are about 10 days old. He is very pugnacious at this time and willattack any living thing that appr
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. TROPICAL AQUAEIUM FISHES 73 the form of a ring with a roof over it, leaving only an opening for thefemale to enter to deposit her eggs. The nest is glued together by a stickysubstance exuded from the body of the male fish, who assumes a brightred color in parts of the fins at this period. After the female has depositedher eggs he drives her away, looking after the nest and young himself untilthey are about 10 days old. He is very pugnacious at this time and willattack any living thing that approaches. Different species probably varysomewhat in details of breeding habits. An English authority claims thatin Nature the male persuades as many females as possible to deposit theireggs in liis nest. The Stickleback is well known as an aquarium fish, butit should not be kept with other fishes. It prefers to eat daphnia or bitsof small worms. THE CHAETODON Chaetodons build their nests directly among plants off the fish are less of fighters and depend more upon hiding their youtig. Fig. 55. The Chaetodox (Enlarged one-quarter) than upon boldly protecting them. The Chadetodon is one of the mostcharming of all aquarium fishes. Many of them are exported to Europe,where they are highly esteemed and bring good prices. This fish hasquite an individuality—its peculiar markings, precise movements andgenteel manners setting it quite apart from most other fishes. It swimsprincipally by use of the pectoral fins, which are so transparent as to bescarcely observable, giving the fish the appearance of moving about by GOLDFISH VAEIETIES AND will-power, without physical effort. Chaetodons greatly prefer livedaphnia to all other foods. If fed upon them regularly it is difficult toget them to touch anything else, starvation under these circumstances notbeing uncommon. They do fairly well on dried shrimp once they take it. THE SUNFISH The Sunfish is one of the most widely distribu
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