What can cause coral to suddenly stop growing?

Discussion in 'Coral' started by SaltyClown, Oct 7, 2014.

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  1. SaltyClown

    SaltyClown Sea Dragon

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    About two weeks ago I noticed my corals stopped growing. My parameters are right where they should be. Nothing has changed to the tank. The only thing I can think of is, my McCoskers wrasse is gone, again. I think it may have died and maybe it is having an effect on the tank. OR, since it's fall now, our natural gas furnace has been running for 2 or 3 weeks now and maybe that's having an effect on the corals.

    I also recently cleaned my koralia power heads with vinegar. I rinsed them well, before placing them back into the tank.

    I should add that two weeks ago, I noticed my forest fire sps and green and orange montipora corals, started to look really unhappy and it even looked like some polyps came off. My acros seem fine though.

    Any ideas in this?

    Oh and I want to ask. I use RC salt for my reef. I used to use RSCP, but wasn't impressed at the time. I still have half a bucket of both. Can I mix the two salts next water change I do, or is that a no no?
     
    Last edited: Oct 7, 2014
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  3. Vinnyboombatz

    Vinnyboombatz Giant Squid

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    Check your PH level.You can mix the 2 but not now.Stick with what you are currently using until you can figure out what the problem is.Vinegar shouldn't be an issue.
     
  4. Todd_Sails

    Todd_Sails Giant Squid

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    And no nitrate spikes? Temps are the same in the tank? Calcium and Alk have stayed up/good?
     
  5. Matt Rogers

    Matt Rogers Kingfish Staff Member

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    I am also curious about alkalinity. That is the stunner when dropped in my tank.
     
  6. SaltyClown

    SaltyClown Sea Dragon

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    Alk, 13
     
  7. SaltyClown

    SaltyClown Sea Dragon

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    Temp always the same. Cal 450. Alk 13. Hmm, I should test for nitrate...
     
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  9. Vinnyboombatz

    Vinnyboombatz Giant Squid

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    And your PH level.........
     
  10. Newreef15

    Newreef15 Horrid Stonefish

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    Also what about ammonia ?

    You said you think your wrasse died
     
  11. SaltyClown

    SaltyClown Sea Dragon

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    PH 8.4
     
  12. Billme

    Billme Eyelash Blennie

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    The alk seems a bit high. That could raise the pH too. If you have alot of algae, the pH will go even higher during the day when the lights are on.