Hammer coral - Deflated polyps and lost a few before.

lostrider

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Hi there.

I purchased a hammer coral around a month or so ago. At first it was bubbly and it’s polyps were inflated. Over time, I noticed it lost a few polyps and its polyps especially on its ends (NOT AS MUCH in the middle) became deflated and droopy. Also at night time when lights were off, it became more withdrawn into the skeleton than when I first purchased it.

I moved it to a lower flow area of the tank (there is another spot I can try if it doesn’t recover).

My parameters;

temperature: 77.5 F
nitrates: 12.8
Phosphorous: 28 ppb
Alkalinity: 8.8
Calcium: 425
Magnesium: 1500
Salinity: 1.026

Parameters have been pretty stable since I bought the hammer. If anyone can look At the pictures and video and let me know what they think, I’d be appreciative. I read about BJD, so want to be proactive in case it is that, or if I should just be patient since I moved it to its new spot less than a week ago. Let me mention, my other corals are doing fine (torches, mushroom corals, leather corals, cespitularia).

thank you!

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Grootzilla

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Welcome to the forum!

Do you use RODI water for water changes and top off? Have you noticed any fish being particularly interested in it?
 
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lostrider

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Welcome to the forum!

Do you use RODI water for water changes and top off? Have you noticed any fish being particularly interested in it?

No fish are interested in it. And I use RODI with my ATO. It’s polyps are extended during the day, just not as big and puffy like when I first bought it. Considering I just moved it, I may wait before coming to conclusions. I tend to overthink
 

HAVE YOU EVER KEPT A RARE/UNCOMMON FISH, CORAL, OR INVERT? SHOW IT OFF IN THE THREAD!

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