. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. TROPICAL AQUARIUM FISHES 233 ment, but was abandoned by the writer owing to the trouble of discon- necting everything and washing sand every ten days, which was necessary owing to clogging. In top filter the cotton must be changed every two days, but this can be done in a few seconds. This arrangement both filters and aerates the water. If filtering is not needed, the filter can be removed and aeration will go Please note that these images are extracted from scanned pa
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Aquariums; Goldfish. TROPICAL AQUARIUM FISHES 233 ment, but was abandoned by the writer owing to the trouble of discon- necting everything and washing sand every ten days, which was necessary owing to clogging. In top filter the cotton must be changed every two days, but this can be done in a few seconds. This arrangement both filters and aerates the water. If filtering is not needed, the filter can be removed and aeration will go 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: ., bookauthorinneswilliamtwilliamt, bookcentury1900, bookdecade1910
