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Old 04-23-2012, 10:25 PM   #1
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Hammer Coral

I have a couple hammer corals that both slowly start to invert when the moonlights come on (around 8:00 PM). When I get up in the morning around (6:00 AM) moonlights still on they are fully open and extended. I have yet to see the tentacles. Is this normal behavior of hammer corals? Need some advice. Thanks.
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Old 04-24-2012, 01:29 PM   #2
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Yes, hammers tend to retract at night and come out in the morning.
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Old 04-24-2012, 01:50 PM   #3
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Mine do this all the time
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Old 04-24-2012, 01:51 PM   #4
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Then look like this in the day top right of pic

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