Tree Colt disease?

jor8888

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Jan 14, 2003
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Tree Coral Dying !!! Help plz

1 of my 3 tree coral has bottom stem turning brown and hard. I wonder if this is some kind of disease or just not enough chemical? It not opening up anymore and the other corals are doing fine. all parameters are 0 and 1.025 and 8.3 15g nano reef 65W PC.
 
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Can you be more specific on what kind of coral this is? Sinularia, colt, kenya, Lobophyton, Sarcophyton, etc...

If not, do you have a picture?
 
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