. Goldfish razze e altri pesci di acquario, la loro cura e la propagazione; una guida per acqua dolce e acquari marini, la loro fauna, flora e di gestione. Acquari; Goldfish. "Ilh nOTtj fpr Imng fuh cibo. Stagni scavate nella terra o costruito da dighe sono Jess costose di quelle costruite di mattoni o calcestruzzo, ma questi ultimi sono più facilmente super- ammorsate, come i lati perpendicolari offrono una chiara visione del contenuto e protezione dai raggi diretti del sole durante i caldi pomeriggi. Tuttavia costruito,arbusti e alberi di ombra dovrebbero essere piantati lungo le rive e una crescita rigogliosa di wate

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. Goldfish breeds and other aquarium fishes, their care and propagation; a guide to freshwater and marine aquaria, their fauna, flora and management. Aquariums; Goldfish. "ilh nOTtj fpr Imng fuh food. Ponds dug into the earth or constructed by dams are Jess expensive than those built of bricks or concrete, but the latter are more easily super- vised, as the perpendicular sides offer a clear view of the contents and protection from the direct rays of the sun during hot afternoons. However constructed, shrubbery and shade trees should be planted along the banks and a luxuriant growth of water plants encouraged in them, restricted to localities where they will be under control. For this purpose Cabomba, Myriophyllum, Giant Anacharis and Ludwegia mulerttii are best and will find a ready market; but floating bunches of watercress will root and thrive on the surface, furnish oxygen and offer convenient hiding places and shade for the fishes and homes for the small aquatic fauna constitut- ing the natural food; having the ad- ditional advantage of ready removal when desired. No plants other than these and lilies should be introduced or permitted to grow. Sagittaria will not grow out-of-doors. All sod should be removed from the bottom and the sides at the water level to prevent the injurious decay of vegetable matter. Feeding tables in the water are not advisable as they may become foul from decaying matter, culture places for parasites and safe retreats and lurking places for enemies which shun the light of day. The fishes soon learn to congregate in the desired localities at the regular feeding time and will keep the bottom clean and clear of food, if not overfed. Let it here be again noted that goldfishes of the fine breeds become more course in large bodies of water than those reared in small tanks and basins. Specially Equipped Goldfish Breeding Establishment. The illustration, Fig. 60, is an ideal arrangement for a large artificially con- structed breeding establi

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1900
• booksubjectaquariu
• bookyear1908