Carol J. James Laboratory Aquarium - C. diabolis 24 September 1967 - 1830hr Put (12) young Cyprinodon diabolis into prepared 10 gal. aquarium. Aquarium contains plants, & gravel. Filter present, but inefficient. Water temperature according to the aquarium thermometer - 88°C. Two fish injured slightly due to handling while transferring to tank. Others seem fine. Six planaria and two beetles (from Devil's Hole) were also introduced into the aquarium. 2100hr Checked fish. All seemed fine and active. Put in some frozen brine shrimp as food. 25 September Water temp = 90°F. according to the aquarium thermometer. This was measured with an accurate centigrade thermometer and a temp of above 94°C was recorded. I reduced the heater to level. 26 September 1600hr Aquarium temp (registered on inaccurate thermometer) is 84°F. Turned heater up. Replaced filter, saw airstone & more oxygen