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Show Keeping Water Clear Many aquariums are rendered unsightly un-sightly by clouded water. Certain types ol fish, especially goldfish, have a tendency to produce this clouded condition in the aquarium by their habit of mouthing the sand on the bottom. This stirs up the sediment, etc., which in turn settles on the plants and makes them unsightly. un-sightly. A very simple solution lor this problem is a small filter which can be hung on the tank at the back, coupled to the air line from the aerator, and by continual filtration fil-tration will keep the water crystal clear. |