Coral reef problem

Discussion in 'New to Saltwater & Reef Aquariums? Post Here' started by mfbs1998, Nov 2, 2016.

  1. mfbs1998

    mfbs1998 Member

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    Hello there!
    So I started my 20 gallon saltwater tank about 3 months ago. Right now, the only thing I have in that tank is 2 clownfish, a yellow watchman goby, and some inverts. I have started to do coral just a few days ago with xenias, zoas, and a frogspawn. All three of them opened up immediately when they were put in the tank but just a few hours after that, my xenia is on the brink of death, zoas are closed up, and the frogspawn shrunk. I don't know what is going on so can anyone help? All of my ammonia and nitrites are all zero but the nitrate is low. My pH is also at 8.4, I have a canister filter running that is rated for 55 gallon, and a high output t5 light with two bulbs
     

  2. Diesel

    Diesel String Stalker. R2R Supporter Reef Spotlight Award Photo of the Month Award R2R Excellence Award

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    Did you test for phosphates?
    A canister filter can be phosphate reactors if not cleaned enough like every other day.
     
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  3. mfbs1998

    mfbs1998 Member

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    Yah. Phosphate is reading at 0 so I don't know what is going on. The only thing I have in the filter is some bio balls, polyester filling, and carbon
     
  4. Diesel

    Diesel String Stalker. R2R Supporter Reef Spotlight Award Photo of the Month Award R2R Excellence Award

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    It might be that your tank is to clean with No3 and Po4 at 0,0.
    How long has it been like that?
    Did you dosed anything in the tank lately?
     
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  5. MasterBacon

    MasterBacon Well-Known Member

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    Pictures?
     
  6. mfbs1998

    mfbs1998 Member

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    I haven't done anything much lately. Ever since I started the tank the only thing I have been doing is weekly water change ( 25%-50%) and feeding them twice a day. I don't dose anything for them since I thought that the light will be strong enough
     
  7. mfbs1998

    mfbs1998 Member

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    Here is some pictures

    1478141030010.jpg

    1478141112207.jpg

    1478141204308.jpg
     
  8. ahiggins

    ahiggins Valuable Member

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    Oh man....that last one is pretty bad :( especially for it being one of the best growers/weedish type.
    With your water changes, thats a LOT 50%?! also what salt do you use? I know when I used coral pro salt from red sea, it made up to super high alkalinity. I never noticed until something died.
     
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