Hammer Coral Question

[John G]

I have a large hammer, not exactly sure if it's ancora or pancora. Lately I've noticed some large, translucent bubbles on a few of the stalks. If I had to guess, they look like polyps that filled with air/gas. The largest bubble is about 1 inch in diameter. Can anybody tell me what exactly these are, their purpose, good or bad, etc??????? Thanks!!

 

[Rich-n-poor]

tried to find a refrence but couldnt locate it

I believe I read about a similar occurrence in mushrooms, that is a result of excessive gas exchange linked to the amount of light they are exposed to.

Too much light and the gas bubbles form. But I am going on memory. What is your photoperiod/wattage and tank size ?

do the bubbles recede at night if so try moving the coral down in the light column

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