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From Small To Those: Among the best small-aquarium inhabitants are small marine snails and barnacles. Starfish, sea urchins, sea cucumbers, and sea anemones will usually live for a few weeks and under carefully controlled conditions may be kept in aquaria for much longer periods. Small crabs will often thrive where more exacting forms die, and Obelia will often live and reproduce new colonies in very small aquaria. . . .
Feeding the Animals
Vary according to habitat. Capture small ones with dip net.
Strange, small crabs that live in borrowed houses, usually in broken shells, often much too large or small for them. Captured easily by hand; found most often higher up on beach and quite far from small to those water's edge.
Large Scale and Small Scale Charts
There is often confusion about the meaning of the terms "large scale" and "small scale" as used with respect to charts. Part of the problem is that the terms do not have exact definitions and are applied to charts relative to each other. Think of the second figure in a chart-scale ratio (e.g., 1:10,000) as the denominator of a fraction. The larger this value, the smaller the fraction.Thus, a 1:80,000 chart is small scale in comparison to a 1:10,000 chart.
The small-scale chart, however, covers a larger geographic area than a large-scale chart of the same paper size. Remember: Small scale, large area; large scale, small area.
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