. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. WHOLESALE BREEDING 67 has several advantages, among which is interchangeability of screens or covers. Allowing 6 inches for the thickness of bottom will leave an inside depth of 20 inches, but under ordinary circumstances they should not be filled beyond 14 to IS inches. With the outside tanks this gives a safety margin of several inches before a heavy downpour of rain causes the level to rise to the screened safety overffovvs one inch from the top. It also catches practica
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. WHOLESALE BREEDING 67 has several advantages, among which is interchangeability of screens or covers. Allowing 6 inches for the thickness of bottom will leave an inside depth of 20 inches, but under ordinary circumstances they should not be filled beyond 14 to IS inches. With the outside tanks this gives a safety margin of several inches before a heavy downpour of rain causes the level to rise to the screened safety overffovvs one inch from the top. It also catches practically all of the rainwater of the season, which is excellent for the fishes. If the water becomes ^'i"nit AninMiiMI/IHIiMIIIHUHNiwiMiininmMwniiniii wiiiii lUiiiii iin wiim. â ^ V -â1 1 1 1 /^ EAR/A/a POf^OS COM£TS A/YA^P/YS £TC. O/f/ VE WA Y Fig. 53. Wholesale BREEorNo Establishment, Showing Greenhouse and Outdoor Concrete Tanks nigh, it can be siphoned off from the bottom until original level is reached. The advantage of being able to fill up, if necessary, to 19 or 20 inches in an inside tank is that at certain seasons the greenhouse capacity for fishes is taxed to the fullest. At such times the extra volume of water for the storage of fish stock will be keenly appre- ciated. An economy of space can be eft'ected by building wooden tanks to stand over the section marked "Breeding Ponds" in figure 53, thus making two rows here instead of one. The wooden tanks should be somewhat narrower than the lower concrete 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
