Detailed form submitted: rakabos

Discussion in 'General Discussions and Advice' started by rakabos, 15 Sep 2011.

  1. rakabos

    rakabos

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    Detailed help request
    Are you experiencing any problems in your tank?
    Yes
    Brief Description
    Hi guys. Been having an issue in my tank the last 3 days or so. 70% of all my coral are either closed or barely open. Nothing in my regime changed and I have no idea why the tank is reacting the way it is. I took out a dead starfish 2 days ago so that may have led to a bit of ammonia but surely the tank size should have taken care of any issues with that. I have about 100KG liverock in the DT and a DSB in the sump. I am really getting worried as none of the coral seem to be bouncing back. SPS's look like sticks, no polyps extension, the odd zoa colony is open. As most of you know the tank is stocked with 60+ zoa colonies and various other corals. Been running at this capacity for much of the tank's life. I added a reactor with more activated carbon this morning, just to make sure i pull out any crap that may or may not have entered the water. The tank has a hood with slight gaps on the side.

    Any ideas on what else to do ?
    Tank size
    1.5m
    System Volume
    700L +100L sump
    How long has your tank been running?
    10 months
    What livestock do you have?
    5 Large tangs, 10 smaller fish.
    Zoas, LPS and SPS
    Water Parameters
    Alkalinity (dkh): N/A
    Calcium: 400
    Phosphate: N/A
    Magnesium: N/A
    pH: 8.2
    Nitrite: N/A
    Nitrate: <1.0
    Ammonia: Not detectable this morning
    Salinity: 1.025
    Temperature: 27C
    What lighting is over the tank?
    6x 80W T5 (Giesemans)
    Pumps and equipment
    3 Seios , approx 15000LPH total
    Maintenance
    100L water change every 2 weeks. Running Purigen, Activated carbon, Phosphate reactor. 6 weeks ago started with prodibio (biodigest and bioptim)
    Other info and photo's.
    -
     
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  3. rakabos

    rakabos Thread Starter

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    The fish and inverts seem perfectly fine
     
    Last edited: 15 Sep 2011
  4. ReefMaster

    ReefMaster

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    Hi there, please upload latest pic
     
  5. viper357

    viper357 Admin MASA Contributor

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    Alkalinity is one of the most important parameters that you need to be aware of, you need to try and get a reading for that, especially with corals in the tank, a very low or high dkh reading can be very bad for corals. With so many soft corals in your tank I'm sure they are sucking your alkalinity quite quickly.

    How often do you change your activated carbon?
     
  6. rakabos

    rakabos Thread Starter

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    I can only take a pic when i get home. Not much to see in terms of everything semi closed. Some corals look ok, like the xenia which is pulsing away like nothing is wrong at all. Zoas, GSP, shrooms, SPS all closed. Hammer semi open, and so is the frogspawn
     
  7. rakabos

    rakabos Thread Starter

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    Carbon is replaced every 3 weeks or so. Purigen regenerated once a month or so.

    I do have a KH testkit, but i couldnt be sure of the results, being color blind and the wife wasnt on hand at the time.
     
  8. rakabos

    rakabos Thread Starter

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    I did a waterchange on Sunday now that i think about it. Red Sea coral pro, but a batch that I have used from before with no issues...
     
  9. viper357

    viper357 Admin MASA Contributor

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    Ok, so I assume you do monitor it and it's within normal range though?

    Do you dose Iodine at all?

    Do you have a domestic worker that cleans around the tank or possibly sprays anything in the same room as the tank?
     
  10. rakabos

    rakabos Thread Starter

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    I do check from time to time yes but not recently, as the regular water changes keep things steady. 2 drops of iodine once a week. And yes we do have a maid which is under strict instruction to be carefull with spraying crap around the tank. I was also leaning towards that train of thought.

    I have 100L ready to change when i get home, and will do 200L more on the weekend. Takes forever to make RO with our water pressure. Once that is in I will do another 100L as soon as its ready, and do 100L every week for a while. If that cant save the situation i dont know what will!
     
  11. pXius

    pXius

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    If you run into RO problems let me know, I'm 5min away from you with 150L on permanent standby.

    I remember those mini carpet anemones, You don't by any chance have some kind of a chemical warfare going on? Also how are your temps? With summer around the corner we're having warm days and cool nights, could be a temp swing?
     
  12. Evo R

    Evo R

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    Is all your LS accounted for??
    Make sure that non of your additives are past there expirery dates?
    And just make double sure your domestic didnt accidently spray something in the room or cleaned the glass or something.
    Check in your sump if everything is 100%.

    But its (in my opinion) deffinately something in your water thats stressing your corals.
     
  13. rakabos

    rakabos Thread Starter

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    The temps swing between 26 and 28, never more than that, I have 2x220V fans in the sump which cools things down quite considerably. I do have two mini nennies yes, and one big leather. I wonder if that could be it. Gonna google some
     
  14. RiaanP

    RiaanP Moderator

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    how big was the starfish you took out?
     
  15. rakabos

    rakabos Thread Starter

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    Yep like i said the one starfish died, rest are all there. I had a bit of ammonia after i discovered him. By then the coral were already sulking. I added Prime i think its called from Seachem, this morning Ammonia was zero.

    The sump looks well, the way it always does. Macro algae seem ok
     
  16. rakabos

    rakabos Thread Starter

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    Palm sized id say. He wasnt in the water dead for more than 12hrs
     
  17. Nemos Janitor

    Nemos Janitor

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    Bud check your pumps and wiring for a leak. The wire or a faulty pump may be putting copper into the system. This would explain the starfish death and sulking corals but happy fish.
     
  18. rakabos

    rakabos Thread Starter

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    Will do, although the other inverts seem just fine. Cleaner shrimps, hermits, snails
     
    Last edited: 15 Sep 2011
  19. Tony

    Tony

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    How long have the new lights been in?
     
  20. rakabos

    rakabos Thread Starter

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    3 weeks or so
     
  21. Nemos Janitor

    Nemos Janitor

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    I have found that Star fish are more sensitive to copper than the other inverts. The copper level could still be very low and increase with time. I recomend you check just in case.
     
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