Colt Coral Shrinking

Discussion in 'Soft Corals' started by amalick, 27 Dec 2008.

  1. amalick

    amalick

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    I have a colt coral thats been steadily shrinking over the last few weeks. In addition my leathers wont open completely. I can't for the life of me figure out why.

    Parameters: - PO4 = 0.8mg/l, Nitrite = 0, Nitrate = 50mg/l, Calcium = 400ppm, PH = 8.5, Salnity = 1,023, Temp = 26.5. Did a 20% water change 5 days ago.

    The only major additioins to my system has been a surge device + an algea scrubber which is two weeks into its cycle and developing algea growth very nicely.

    I dose Stontium, Calcium, Iodine, Magnesium, Molybdenum and Trace religiously once a week as per the recommended dose for my 750l. My other corals like hammers, mushrooms, galaxy, organ pipes, bubble and even another two colts are all thriving.

    Any ideas ?
    [​IMG][​IMG]
     
  2. AdS Guest




    to hide all adverts.
  3. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    What is your alkalinity and are you using a Phosphate remover, if so witch one.
     
  4. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
  5. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Using natural sea water from 2 oceans aquarium in CTown. Not using a phosphate remover but using an algea scrubber instead. My PH is 8.5 isn't that the same as measuring alkalinity?
     
  6. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Two weeks ago

    Some pics of them 2 weeks ago
    [​IMG][​IMG]
     
  7. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    Yes you did say your PH is 8.5 but what is your alkalinity.
     
  8. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Thanks Shaun - I have an LFS around the corner from me that closes at 4pm. Save a noob some time and guide me quickly if you don't mind. I know I should read through the form 1st. I was always under the impression that PH is a measure of Acid or Alkalinity (probably very noob of me). Clealy i'm an idiot so.. What test kit should I buy. I looked for a Alkalinity specifc kit but had no luck. THey have broad range PH test kits and KH test kits. which one should i buy to test for alkalinity ?
     
  9. viper357

    viper357 Admin MASA Contributor

    Joined:
    4 May 2007
    Posts:
    27,983
    Likes Received:
    777
  10. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    I think Hennie has a nice article on the relationship of Ph and Alk. The kit you are looking for will be KH. Just get the one for Marine Salt water not fresh water. I know my softies salk a bit more that usual when my Alk is a bit low.
     
  11. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
  12. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    OK - Thanks for the quick reply - Really appreciated since I know I should read through the forum 1st. I'm on my way to the LFS to buy the KH test kit. I will also buy a new broad range PH test kit since my current one is 2 years old. I also intend buying Seachem Reef Carbonate just incase. I will test and feed back.
     
  13. viper357

    viper357 Admin MASA Contributor

    Joined:
    4 May 2007
    Posts:
    27,983
    Likes Received:
    777
    It will probably be a good idea to get a calcium test kit as well, as alkalinity and calcium work hand in hand.
     
  14. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    There could be some chem war going on as well causing them to shrink. Are all your pumps working 100%, check them try remove the back cover as well, were the power cord goes in. Might be a good idea to get some good activated carbon to run.
     
  15. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Test Kits

    I have no idea how I ever attempted to keep marines over the last 10 years without being a member of this forum. You guys are the shizit:thumbup:.

    Rushed to the LFS bought and used the new test kits (R268 ouch!) and whala - PH = 7.5, KH = 7. Now I will read through the links yu guys provided to see what I need to do to get things within acceptable ranges, unless you okes are feeling very giving (xmas and all) and want to give me a quick remedey.

    I tossed my old PH test kit so far over the wall that it smashed into pieces:(
    [​IMG]
     
  16. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    Ph can be a bit higher 8 - 8.5.
    Your should test the Ph in the morning before light come on it will probably be around 7.

    Alk is fine but I prefer around 8 but I think 7 - 11 is still ok.
     
  17. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Added Seachem Reef Carbonate

    Hi Shaun - I read as much as i could on the links provided for about an hour or so. Now I feel like I have a PHD in Microbiology, Chemistry or something. Anyway I added the manufacturer recomend dose of Seachem Reef Carbonate to try and get my KH up to 8 over about two weeks. Calcium is at 400ppm so hopefully this addition wont hurt it too much. PH at 7.5 does feel a bit low but i'm hoping that by correcting the KH over time the Ph will climb. I'm not doing anything too drastic just yet.

    Me thinks I SPEAK CHEMISTRY NOW:p

    Do you think the shrinking colts and unopen leathers can recover ??
     
  18. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    This is what my leather looked like when I had a problem with a pump.
    [​IMG]

    It has now recovered but the don't recover as quick as they go down hill.
    Have you checked your pumps and are you running some carbon.
     
  19. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Pumps are fine

    Checked pumps and all are running at full trot. In fact I recently added a surge device that dumps 40l or so every 5 minutes causing plenty random flow in the tank.
     
  20. scubaninja

    scubaninja

    Joined:
    20 Jul 2008
    Posts:
    6,739
    Likes Received:
    21
    Location:
    Durban
    amalick, what about your new surge device? i see no-one has touched on this. From the pics of it in action shows its pretty fierce, a lot of bubbles come through, maybe its too large a dump of water, what do you think? did you increase the volume of the dump? i think it might be the increase in flow at them suddenly that they dont like, my leathers like a bit of high flow everynow and again but i think a big dump that hits them as well as a blast of air might be adding to it. You might want to check it out cause your levels arent that out of whack
     
  21. amalick

    amalick Thread Starter

    Joined:
    22 Nov 2008
    Posts:
    1,185
    Likes Received:
    7
    Location:
    Cape Town
    Yup - I did double the size of the dump from 20l to 40l. In addition the outlet icreased from 25mm to 40mm so its much much more force. Strangely though its doesn't dump directly over the leathers so doubt that its that. It does howver dump very close to the colt which actually sways very much during the dump. Maybe I should move the colt to a less volitile ("spelling ??") spot.
     
Recent Posts

Loading...
Similar Threads - Colt Coral Shrinking Forum Date
Colt coral shrinking? Soft Corals 4 May 2010
[wtd] Colt coral frags wanted Wanted 17 Aug 2016
Vietnam Marine Shipment Available:Fan wormColt soft coralKenya tree coralMus... JungleAquatics.NET BLOG 16 Aug 2013
Blennie hosting in colt coral?! Marine Fish Discussions 30 Sep 2010
pink colt coral?? Soft Corals 2 Feb 2010
Hermit Crab & My Colt Coral Beginner Discussions 15 Jan 2010
Kenia tree/colt coral - white tips Soft Corals 5 Sep 2009