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Water Temperature
There are no set standards for tank temperature however, some aquarium owners say that a temperature range of 75-77ø F works well whereas others feel that a range of 75-80øF is better. Some even favor tank temperatures of around 80-85ø F. Ideally, you need to know of what type of climate your tank inhabitants originated from because different types of fish enjoy different temperatures. For instance, sea temperature typically varies between 72-92ø F. so that may be the range to set your sights on. But it is better to have a pet store employee help you determine the right temperature based on the type of fish who will inhabit your aquarium.
Alternately if you plan to have a reef system and add corals to it, they come from a variety of ocean environments where the temperature ranges from the low seventies to the low nineties. Since most reef aquariums have a variety of corals from different marine environments, sticking to the 75-82 degree range is a somewhat safe choice. In other words, knowing what kind of organisms you have and "where" they come from is an important factor when determining a tank temperature for your system. Rather than trying to run your temperatures high, you should reach a happy medium at about 79 degrees, because this temperature provides the largest margin of safety for the hobbyist, as corals have been shown to thrive in water several degrees on either side of this temperature.
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