Proper coral acclimation is one of the most important steps after receiving new corals. Incorrect acclimation can cause stress and even coral loss.
Why acclimation is important
Corals are sensitive to sudden changes in:
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salinity
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temperature
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nutrient levels
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lighting
After transport, corals must gradually adapt to the conditions of your aquarium.
Adaptation usually takes several days, and during this time corals begin opening their polyps as they adjust to the new environment.
Basic coral acclimation process
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Float the bag in the aquarium for 15–20 minutes to equalize temperature.
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Slowly mix small amounts of aquarium water into the transport water.
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Inspect the coral and remove excess shipping water.
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Place the coral in a lower-light area of the tank.
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Gradually move it to its final position over several days.
Signs of successful acclimation
Healthy corals usually show:
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extended polyps
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bright coloration
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slightly inflated tissue
These are indicators that the coral is adapting well to the new conditions.
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