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Unread 02/09/2018, 11:39 AM   #1
skasikmd
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Join Date: Feb 2018
Posts: 4
Corals Not Opening and Dying

Two years ago the Arctica Chiller quit working and the temp in my Red Sea Max 250 went to 94 degrees. All the corals and all but two of the fish died. Since then we have had only rock and two fish. I found copepods a month ago. We went to a reputable fish store and bought five corals. Corals were zoanthids, green star polyp and a kenya tree. None of them have opened. They look like little white bubbles and the kenya tree went to mucus and is gone. They were under LED's in the store. We converted the tank to LED's at 50% before we bought the corals. The lights stay on 12 hours and ramp up in the morning and down in the evening with blue moonlights at night. The corals were bagged and dripped and placed mid tank on the rocks. Water parameters are as follows:
pH is 8.4; Ammonia is 0; Nitrite is 0; Nitrate is 0; Phosphate is 0; Alkalinity is 1.72, Calcium is 1.03 and salt is 1.023. We had only soft corals in the tank before the crash. We do water changes every 5 to 6 weeks. The rocks have brown diatom algae on them.
Any idea what could be causing the corals to not open and die? Do we need to break the tank down completely, replace the sand and the rock and start over?


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