Lily Kim – Study English in Australia at TIES

How does an aquarium cope with an influx of fresh water? 🌧️
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As Townsville welcomed more than 200mm of rain over the last few days, we have jumped in to action to keep an eye on the salinity (salt concentration) levels.
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Normal seawater is 34-36 ppt (parts per thousand), and this is the target salinity of Reef HQ aquarium. Reef fish and corals require stable salinity to balance the chemical composition of body fluids – a process known as osmoregulation.
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To compensate for the rain, we activate our reverse osmosis (RO) machines, which remove freshwater from our system (and keep the dissolved salt).
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Our RO machines have been in operation since early this week, maintaining salinity close to 35ppt and our fish and corals remain happy and healthy! 😀 🐠
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(c) Commonwealth of Australia (GBRMPA)