what caused a doughnut coral to shriveled while others are not

ivans75

New member
I have 5 doughnut corals in my tank now and 4 of them are doing well, expanding, tentacles out at night, and fluffy. But this particular one is not. This is green metalic doughnut coral, smallest of others.

I used the same method of acclimation for all of them and my water parameters are quite ok. (ammonia, nitrite, nitrate 0, po4 0.05-0.1, ph 8.4, alkaline 12 dkh, mg 1300, ca 460, temp 78F, salinity 1.024)

I am not dosing with anything except vodka for nitrate and po4 reduction but I have stoped dosing a week ago. Okay temp is changing during day and night as I am using room a/c in the morning and turn a/c off at night but I am running 2 portable jebo fan (6x2 fans) I

This particular doughnut does expand a little and when it expands, it bubles it doesnt get flabby but instead it "bubles" up.

I am feeding them with seachem phytoplankton and aquapharm coral food sea plankton.

I am using 1 supplement only, that is seachem reef plus twice a week as directed.

Another thing I notice is that this doughnut opens its mouth quite wide when shriveled but just last night I saw him expanded but it's more bubbling up as I mentioned.

Anybody could enlighten me about this as I am absolutely puzzled.
 
dohh i think i am on the wrong section of this forum...apologize...can someone with previlege move this to the LPS section please?
 
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