Symbiotic algae

Discussion in 'Urgent Help Needed' started by HendrikKotze, 20 Apr 2009.

  1. HendrikKotze

    HendrikKotze

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    My tank is 1 year old.
    I bought a purple tip anemone and brown star polyps about 6 months ago.
    Until about 3 months months ago they were in very good condition.
    And then the anemone started to shrink very small and turned white.
    The polyps barely comes out.
    The leather coral that I have had for about 8 months also shrunk and pulled back it's polyps.
    At that time I noticed that the phosphate and nitrade levels were very high.
    I replaced the Phosban and the phosphate dropped to 0.
    I lowered the nitrades to about 25 with water changes - I do not have denitrator.
    The following happened before and during this time:
    During Decemebr I changed the light T5 ballast to an Osram unit.
    I have 2 (cheap) white and 2 (expensive) blue 54 W lamps.
    But the anemone seems to shrink even more when I leave all the lights on.
    So I only have 2 units on.
    At the same time I had a huge cyano outbreak - everywhere.
    I made the mistake of listening to the LFS and put a capsule of who-knows-what in the water as he said he uses it on his own tank at home:(.
    It did kill the cyano. I know everyone will tell me that this is the problem, but hopefully there will be a solution.
    I also changed the sump to accomodate a small DSB.
    Not sure if it works yet.
    The protein skimmer also seemed less efficient during this time as I used to clean it every 2 to 3 days and then only once a week. It is a bit better now.
    Duing this time the water temp was 28 to 32°C, as I have no cooler.
    The fish all fine.
    The leather coral looks a lot better these days, but the anemone stays small and the polyps never extends fully.
    I will psot photos tomorrow.
    Any advice.
     
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  3. dallasg

    dallasg Moderator MASA Contributor

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    Hi,
    could u post your most recent water params here, ammonia thru nitrates.
    what is the salinity of your water? are you topping up with RO water?

    Nice addition would be to add a cheap pc fan above your sump to cool your water down
     
  4. jacquesb

    jacquesb Retired Moderator

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    Hi Hendrik - do you feed your anemone at all? The anemone WILL shrink now that it has bleached. Because it does not have built-in sunscreen anymore (zooxanthellae)....
    If you feed it - how often do you feed? what do you feed? And what size is the food that you feed?
     
  5. HendrikKotze

    HendrikKotze Thread Starter

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    pH - 8
    kH - 6
    NH4 - 0
    NO2 - 0
    NO3 - 50
    PO4 - 0.1
    Temp - 29°C
    Ca - 420
    Mg - 1280
    Cu - 0

    I do have replaced the very small fan on the fan unit with something bigger.
    I haven't thought about the one in the sump.
    Does it blow onto the flowing water?
     
  6. HendrikKotze

    HendrikKotze Thread Starter

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    I feed it 1/2 a shrimp tail every 2 weeks and some brine shrimp every week.
    It is a bit weak to take hold of the food currently and I am sure that it always stays in, but it does eat.
     
  7. dallasg

    dallasg Moderator MASA Contributor

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    yes the fan can blow over the water, it will cool it, but cause more evaporation, so you will have to top up with fresh RO water more.
    Nitrates look a little high, what is your salinity?
     
  8. jacquesb

    jacquesb Retired Moderator

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    Increase the feeding of the shrimp tail to once a week..... you can stop with the brine shrimp, as it does not have enough nutritional value for the anemone....
     
  9. lIghty

    lIghty

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    Nennie should not be put in system less than 1 year old, it has starved to death, or near death, you should be feeding that every second or third day I would say.

    Not enough light too!

    not much you can do except feed it often, or if someone with a better system ( lights ) and house it, hopefully to recovery?
     
  10. HendrikKotze

    HendrikKotze Thread Starter

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    I use RO water, but do not have a TDS meter.
    I do about a 10% change every 2 weeks and did a 20% once to try and improve things - did not help much.
    I also changed during December from Real Ocean to Tropic Marin.
    The real ocean seemed better as it dissovled easier and I used less.
     
  11. HendrikKotze

    HendrikKotze Thread Starter

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    I start to feed it more, but what is the problem with the brown star polyps?
    They both seem to be sensitive to something in the water.
     
  12. HendrikKotze

    HendrikKotze Thread Starter

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    I forgot to mention.
    I also changed during this time from Marine Snow to ZoPlan and PhytoPlan.
    Not sure if it makes a difference.
     
  13. HendrikKotze

    HendrikKotze Thread Starter

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    I do not have an accurate meter.
    Currently it measures about 1.020
     
  14. crispin

    crispin

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    hendrik, you are keeping a salt water tank.....

    you NEEED to know how much SALT is in the water and accurately, its the base minimum......
     
  15. Warr7207

    Warr7207

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    That salinity ain't good, way to low. Need to get it up to 1.025 slowly.

    Also how much does your temp. vary ?
     
  16. Tony

    Tony

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    Hendrik, it sounds like a Hereracta anemone you have there. They demand a lot of light and your four bulbs won't be ebough hence the anemone bleaching. They are very difficuilt to keep.You salinity is also too low like the other guys have mentioned.

    Try and post a pic of the anemone so we can ID it better and help you along. The plancton supplements also help to feed the anemone
     
  17. martin

    martin Reef Adict

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    Might I suggest you contact the MadGerman, also in Centurion, and he will assist with Salinity, lighting, TDS etc.
     
  18. Anemone

    Anemone

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    I agree the salinity is much too low. I recommend topping off with pre-mixed saltwater daily until you have brought the salinity up to a suitable level. I have had better results keeping the salinity at 1.026 for anemones. What size tank is this and what other fish are you keeping? Can you post a pic of the tank and the anemone? How long do you let your salt mix before adding it to the tank?
     
  19. HendrikKotze

    HendrikKotze Thread Starter

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    Attached is photos. There are also a photo of the anemone before this happenend.
    It was just a little bigger than it is now when I bought it and grew very large in a few months like in the one photo. So I am not sure that the lights are not correct, but I have had light problems from about 6 months ago when the ballast started to blow the blue lights. So for a while (after I found out that it was the ballast) I only had 2 lights - white and blue - and everything seemed fine.
    Maybe I did some damage to the anemone then?

    [​IMG][​IMG][​IMG][​IMG]

    [​IMG]
     
  20. HendrikKotze

    HendrikKotze Thread Starter

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    I will certainly do that.
    When the salinity is low, I just add some salt to the sump.
    Maybe not the best?
    I only let the salt mix for 1/2 hr. Sometimes longer, sometimes shorter.
    The tank is 1.5 meter - about 440 liters
     
  21. HendrikKotze

    HendrikKotze Thread Starter

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    It varies from 28 to 30°C daily.
     
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