Abstract
THE Akwarium, a new magazine published for the information of aquarium keepers in Poland, had run only half the course, of its first volume when more serious affairs brought it to an end. The last number (6-7) is a well-balanced guide to aquarium interests, dealing with methods of constructing aquaria, circulating and heating the water; with natural aeration by plants and artificial aeration; and with several of the creatures which have become standard inhabitants of the aquarium. Descriptivo articles discuss among other things the alligator, some bizarre varieties of gold-fish, and the Egyptian mouthbreeder, Haplochromis multicolor, the curious habit of which is to hatch the eggs and protect the young within the cavern of their parent's mouth. We hope that before long the Akwarium may resume publication from Warsaw under happier and more settled conditions.
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The Warsaw Akwarium. Nature 144, 591 (1939). https://doi.org/10.1038/144591a0
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DOI: https://doi.org/10.1038/144591a0