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11/05/2018, 06:56 AM | #1 |
Registered Member
Join Date: Jul 2018
Posts: 15
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Pavona coral seems to be receding or dying
I have a green pavona coral that seems to be dying back at the tips and base. The tips and base are turning white then looking to turn brown. I assume its dying from the tips? I also have montipora in the tank and they seem to be growing well so I cant understand why this pavona is dying.
Isn't it one of the hardiest corals going? I also have a hammer, torch and duncan in the tank and some softies. The duncan has grown several new heads since being in the tank but I have not had much growth from the hammer or torch. My gsp is thriving however and several of the mushrooms have split. I have noticed the last few days that the duncan and torch are not opening up properly and seem to be skulking a bit. My params are as follows: magnesium 1300 calcium 470 DKH 8.5 phosphate 0.03 nitrate 0 (no reading on a red sea pro kit) ammonia 0 salinity 1.028 temp around 27°C The tank is a red sea max nano with the AI prime light at 47% and set to full spectrum 12000k. I realise that the salinity is a little high and so is the temperature and will bring them down. And also that my nitrates are to low. But my params have been like this a while and it has not caused any problems before. The only thing that has really changed is that I have brought the alkalinity down from around 11 to 8.5 over that last couple of weeks. Before i got my dosing pump i was having large alk swings and it never caused this to happen so I can only assume that its starving due to lack of nitrates? the other coral are sucking it up before it gets any? I have only been changing about 7 or 8 Litres of water every two weeks could this be a lack of trace elements? I am open to suggestions here? |
11/05/2018, 02:11 PM | #2 |
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Join Date: Oct 2002
Location: Punta Gorda, FL
Posts: 4,020
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Isn't that merulina?
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The bitterness of poor quality lingers long after the sweetness of low price is forgotten. --------- No one is born with intellect and age guarantees wisdom to no one. Current Tank Info: 120G reef, 30G sump, 10G QT tank |
11/12/2018, 08:17 PM | #3 |
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Join Date: Apr 2003
Location: Mtl. Canada
Posts: 7,824
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Looks like pavona to me.
Maybe too much light? In the photo, it’s the two brightest spots that are receding.. hard to say. Is it new to the tank?
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Matt. Current Tank Info: 53x32.5x26 190g dt 60g of sumps 3 tank-100 gal frag system 6xAI prime 8xt5. 4x maxspect gyre. Skimz Dual internal sicce pump skimmer Deltec PF601s ca rx+Kalk stirrer |
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