. Domesticated trout [microform] : how to breed and grow them. Fish culture; Trout; Pisciculture; Truite. 52 DOMESTICATED TROUT. I. um-sized tanks than to have one excessively large one. .. I should call the first of the two just mentioned a medium-sized one, and the second a large one, as large, perhaps, as should be made. The outlet of the filtering tank should be at least six inches lower than the top of the tank, to guard against the water escaping over the top when the screens clog up. There should be two holes at least an inch in diameter in the bottom of the tank, to let the water off w
. Domesticated trout [microform] : how to breed and grow them. Fish culture; Trout; Pisciculture; Truite. 52 DOMESTICATED TROUT. I. um-sized tanks than to have one excessively large one. .. I should call the first of the two just mentioned a medium-sized one, and the second a large one, as large, perhaps, as should be made. The outlet of the filtering tank should be at least six inches lower than the top of the tank, to guard against the water escaping over the top when the screens clog up. There should be two holes at least an inch in diameter in the bottom of the tank, to let the water off when necessary, and they should be plugged with very long stoppers, which will come nearly to the surface, so that they can be withdrawn without the arm being much immersed in the water. The filters themselves may be made of any kind of strong, coarse flannel. White has the advantage of showing dirt best, and red, Seth Green says, will last the longest; otherwise, one color will do as well as another. These filters must be watched, and, no matter how often they require it, they must be taken out and cleaned as soon as they arc dirty; but in doing this the r, ar one should be moved as litde as possible. If you clean while wet, wash them under water, either with a brush, or a long-handled stick smoothed at Cc end ; the brush is the quickest method, the stick wears them out less. If you have a chance to dry them, the deposit on them can be easily brushed off with a dry brush. It may be necessary to clean the fil- ters every day. If it is, do not neglect it. The tank is placed, of course, at the outlet of the spring aqueduct, which IS usually at luc ntau Oi u^^. i —j^ ,. 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 Stone, Livingston, 1836-1912. Boston : J. R. Osgood
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