. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. oldfishes, see page exclusive diet of dried shrimp agrees with most tropical fishes, butsome variation is better. In summer they should have some daphnia, andin winter, enchytrae, see page 136. Heating, The majority of tropical species thrive in temperaturesranging from 65° to 80° F. Nearly all will do well at 70°. For shortperiods they will stand temperatures below that at which they will thrive,and it is very probable that after a few generations in our climate theybecome accustomed to
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. oldfishes, see page exclusive diet of dried shrimp agrees with most tropical fishes, butsome variation is better. In summer they should have some daphnia, andin winter, enchytrae, see page 136. Heating, The majority of tropical species thrive in temperaturesranging from 65° to 80° F. Nearly all will do well at 70°. For shortperiods they will stand temperatures below that at which they will thrive,and it is very probable that after a few generations in our climate theybecome accustomed to cooler water. When fishes are new and rare it isemphatically a mistake to experiment on seeing how low a temperaturethey will stand. That should be left for a later period after breeding hasbeen accomplished and a stock secured. Tight-fitting glass covers shouldbe provided for all tropical aquaria. This helps keep the temperature upand prevents the fish from leaping out. Forgetfulness of replacing covershas caused the loss of many prized fishes. They will not suffocate if glassis down Fk;. 70. Sphoiof^s zittatus (Croaking (.ourami) This picture illustrates one phase of the breeding habits of the luibble-nestluiiders. Tlie males takes entire charge of the nest and voung.
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