One of the most important, yet one of the most commonly overlooked tank parameters is water temperature which not only needs to be maintained within an ideal range, but also kept stable. If your aquariums temperature is either too high (more common) or too low or it fluctuates by more than 2-3 degrees on a regular basis, it can lead to an increase in nuisance algae growth, reduce coral growth, increase coral bleaching and in the worst cases cause the death of corals, invertebrates, fish and other tank inhabitants.
Why Maintaining a Constant Tank Temperature is Important.
- Reduces Nuisance Algae Growth: Warm water encourages algae growth, so by keeping your aquarium water temperature on the cooler side, it helps keep algae at bay.
- Improves Coral Growth & Health: Stable water temperatures help encourage coral growth and coral color.
- Improves Coral Color: Water that is too hot or too cold can induce coral bleaching. Coral bleaching is when corals expel the zooxanthellae living in their tissues, causing the coral to turn completely white.
- Overall Tank Health: Water that is either too hot or too cold can also kill corals, invertebrates, fish and other tank inhabitants.
- Recommended Temperature Range: I prefer to keep our office aquarium water temperature between 74 and 79 degrees Fahrenheit (23 to 26 Celsius). To accomplish this I have an Apex Controller by Neptune Systems controlling an Aqua Euro Chiller which keeps our office aquarium at a constant 76-77 degrees. Most corals and fish should be able to adjust to the different temperatures, if given the time to do so gradually.
- Temperature Swings: A consistent temperature is just as important as, if not more than, the actual temperature itself. Temperature swings in excess of 2-3 degrees Fahrenheit will cause your aquariums inhabitants undue stress—and possibly kill them.
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David @ ReefGeek