An electrically operated brine shrimp feeder is described. The device may be set to cycle 1–12 times each day for tests in fish and invertebrate culture and bioassay. Major advantages of the feeder are that it is readily adapted to flow-through bioassay and culture apparatuses which require that equal quantities of food be delivered to animals in two or more test aquaria and that the number of feedings be recorded. The components, all readily available, cost approximately $190.
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Schimmel et al. (1975) studied this question.