. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. f the water may be sufficientto bring about this result. Repaired work is never satisfactory, and thenext winter will open more seams, making continual expense, dissatis-faction, loss of water and of fishes. With indoor concrete tanks too,thorough construction is a good investment. The main points in the construction of such work are good foun-dations, thorough reinforcement, good cement properly mixed, and onecontinuous job of the finishing coat. The concrete centre ought also bepoured within
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. f the water may be sufficientto bring about this result. Repaired work is never satisfactory, and thenext winter will open more seams, making continual expense, dissatis-faction, loss of water and of fishes. With indoor concrete tanks too,thorough construction is a good investment. The main points in the construction of such work are good foun-dations, thorough reinforcement, good cement properly mixed, and onecontinuous job of the finishing coat. The concrete centre ought also bepoured within the space of one day. There is some difference of opinionas to the necessity for a base of cinders. The author favors them. Ifused they should be the hard kind, wetted down and packed solid to a TEOPICAL AQUARIUM FISHES 221 depth of one foot or more. For tanks of moderate size—say 11x22feet—reinforcement should be by use of ^-inch steel rods, crossed onsquares of 8 inches. The bottom needs two layers of these bars, one nearthe up]ier and one near the lower surface. This protects against both. Fig. 161. Correct Arrangement of Reinforcing Steel, and Galvanized IronForm for Water Lily Pot
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidgoldfishvarietie00inne
