Tamar Jacoby: Congress weighing highway bill that provides transportation funds. She says 1956 debate that created interestate system should give Congress a clue. She says battle was fierce, like health care bill today; Congress made deal for public good.
Tropical fish are those that require heated water, generally in the range of 75-80Â°F (24-27Â°C). Because many homes are not kept in that temperature range day and night, these fish require a heated aquarium.nother time when temperature can have an impact is when a new fish is brought from home and added to an existing tank. Water temperature can change in transit, and again when the fish is added to the new tank. This is an unavoidable issue, but can be minimized by making sure the fish is insulated during transport.
For typical freshwater fish, the temp in my aquariums is between 70 and 78 F. There are others that require higher or lower temps, for instance blind cave fish can take 63-75 F, and Bettas as high as 70-85 F. Saltwater aquarium fish typically come from the tropics, so 75-80 F is best.eport Abuse. Tropical temperature range is considered to be 72-84Âº F/22-29Âº C Below this range for room temperature (coldwater) aquariums. Time light is left on would largely depend on the plants, if any, you're keeping with the fish. Generally, no more than 8 hours.