. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. 64 WHOLESALE BREEDING one side for choice grades with good fin development, color, etc., and the other for single-tails or fish with blemishes. As a final use for the water it can be placed to advantage as shown in a large pond for the propagation of daphnia or other live food. The fish pools should be drained in the winter in order to expose the bot- toms to the action of frost, thereby killing lurking insect enemies. We have shown an outlet on the daphnia pond, but ordina
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. 64 WHOLESALE BREEDING one side for choice grades with good fin development, color, etc., and the other for single-tails or fish with blemishes. As a final use for the water it can be placed to advantage as shown in a large pond for the propagation of daphnia or other live food. The fish pools should be drained in the winter in order to expose the bot- toms to the action of frost, thereby killing lurking insect enemies. We have shown an outlet on the daphnia pond, but ordinarily this is not to be emptied. By draining it the stock of live food would not be entirely lost, but many daphnia eggs would be carried away, and con-. FiG. 52. Farm Breeding Ponds, Showing Detail of Sluice and Guard. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Innes, William T. (William Thornton), 1874-1969. Philadelphia, Innes
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Keywords: ., bookauthorinneswil, bookcentury1900, bookdecade1920, bookyear1921
