algae problem

Discussion in 'Urgent Help Needed' started by smartegoutte, 15 Sep 2009.

  1. smartegoutte

    smartegoutte

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    I'm in need of urgent advice. I have a green slimey hair algae that is taking over my tank. It has been in the tank for a while but has really accelerated in growth in the last week or so.

    I have tried Kalk wasser dossing. I have tried changing carbon in my mechanical filter. i have tried dropping water temps to 25 deg C.

    Today i turned my 2off 150w MH off completely and i'm now only running 4 off T5 lamps two blue and two white. i also reduced the lights on my 2 off 4ft sumps which are home to substantial live rock (approx 90kg) and a large SDB.

    My tank is 1450L x600W x 900 D

    It's been suggested to me that the only way to get rid of it is to remove rock and scrub off the offending algae. I'm obviously reluctent to do this and was wondering if there aree ant other possible solutions?
     
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  3. Prodigy

    Prodigy

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    How long has your tank been running dude?
    And any chance of a pic or two?
     
  4. smartegoutte

    smartegoutte Thread Starter

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    Tank has been running for about 3 1/2 months. cycled it for about 4 weeks before introducing any stock or corals. Water parameters are all fine and fish and corals look great just this bloody green stuff taking over and getting really thick in some areas. I don't have and recent shots to hand but will take some this evening.
     
  5. FransSny

    FransSny

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    There could be a lot of answers to your problem. In order for the guys to assist you would have to give a bit more regarding age of the tank, setup, maintenance regime 7 water params

    Algea is normally a nutrient issue
     
  6. Prodigy

    Prodigy

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    Ok thats good!
    What i have learnt is that within your first 6 months of starting a new tank you are going to get a very wide variety of algeas and they will come and go as your tank is maturing...
    What is your Phos reading and I would say you have alot of nutrients in the tank for the algea to grow but one must remmember that algea needs one very NB factor to grow and that is light!!!!
    Try and stay away from your low kelvin lights as they assist algea to grow the most!!!
    ie 6500kelivn (k)
     
  7. Neil H

    Neil H Moderator MASA Contributor

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    unfortunately what happens is that the GHA uses up the source of phosphates before it gets to a quantity in the water column that can be detected, the presence of GHA indicates your water is not ok.

    what you need to do is find the source of the phosphates, this could be multiple sources

    What substrate do you have?
    what skimmer do you have
    are you running a DSB
    do you have bioballs in your setup?

    was your LR cured?

    how often do you feed your tank ?
     
  8. smartegoutte

    smartegoutte Thread Starter

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    Frans could you elaborate on possible "nutrient issue".
     
  9. FransSny

    FransSny

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    smart, nutrient (crap) build up in the water column due to inadequate filtering, overfeeding / overstocking, bad maintenance.

    Phosphate & nitrates supply food to your algae , the reason you cant pick it up with test kits is because the algae is using it.

    carbon also leaches phos into the water, are you using phos remover
     
  10. smartegoutte

    smartegoutte Thread Starter

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    On main tank 4 T5's 4ft's 2 blue 2 white and 2off 150watt 20000 Kelvin Slyvania MH's
    on sumps 4 off white T8 4ft's

    I have been adding coral grow. could this effect things?

    I have fine oragonite in tank very thin layer 0.5-1 cm. Have fine oragonite in sump DSB 700Lx450Wx180D

    I have a large reef octopuse skimmer . Sorry don't know actual model. I have noticed that it has not been skimming very much lately. could possibly be a problem.

    I used to have Bio balls but removed all of them on advice forum about 2 1/2 months ago. I have mechanical filter with phosphate remover and carbon. i have not cleaned the unit since i installed it. another thing to check.

    LR was cured when bought.

    I have approx 90kg live rock.

    last water change about 2 months ago.

    Feed in the evenings. a mixture of seafood cubes and pellats

    A poor quality image of Algae from a couple of months ago.

    [​IMG]
     
  11. jacquesb

    jacquesb Retired Moderator

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    Hi Smarttegoute - can you please post a picture of this algae?

    Also - post your exact water parameters?
    What feeding regime do you have? How often do you feed what?

    Please answer the other questions as well?
     
  12. jacquesb

    jacquesb Retired Moderator

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    Sorry Smarttegoutte - we posted together.
     
  13. Tony

    Tony

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    Fortunately this is 2009. Chuck some Seachem Stability or prodibio in which will sort it out in a few weeks. You seem to be introducing phosphates somewher in your tank either through your source water, carbon or overfeeding.
     
  14. smartegoutte

    smartegoutte Thread Starter

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    Looks like i need to get on top of maintenance first.

    This will be my plan of attack:
    -I will clean out Mechanical filter tonight.
    -remove what i can of surface algae.
    -carry out water change.

    -should i scrub rocks or accept it get the other issues sorted out first?
     
  15. jacquesb

    jacquesb Retired Moderator

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    I would bet that the phosphates are due to the frozen meaty foods.... these contain huge amounts of phosphates....

    Also - I would dare say that the skimmer is FAR undersized for this size tank....
     
  16. Neil H

    Neil H Moderator MASA Contributor

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    as a knee jerk resopnse, i would focus on the feeding.... when you feed the frozen food do you defrost and throw away the defrosting water of just dump everything into the tank ?

    is there a lot of food left over 2 mins after the food is introduced?

    please post a full tank picture

    what flow do you have in the tank ?
     
  17. martinkeyser

    martinkeyser

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    interesting. will follow this one. also started getting green algae. looks like grass an the sand in dt
     
  18. smartegoutte

    smartegoutte Thread Starter

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    I defrost 1/2 a block. and spoon it in to the tank normally only feed them 1/4 of a block. i spoon the defrosted water and meat together. The corals seem to love it as do the fish. I fear i might be over feeding.:(

    I have the following in tank:
    • Cleaner wrasse
    • Divided Wrasse
    • 6 line wrasse
    • Regal tang
    • 2 off watchman gobbies ( these guys are great especially the way they sit on the snapper shrimps:thumbup:)
    • 4 off chromies
    • 3 off clowns
    • 3 off decorated dart fish
    • All the fish are small. Nothing bigger than 5cm in length average 3cm
    • Blue star fish
    • arrow crab
    • cleaner shrimp
    • tomato/red shrimp
    • banded shrimp
    • Fox coral
    • bubble coral
    • mushroom corals
    • multi colour brain coral
    • sunset coral
    • three others i can't remember the names
    • Blue clam
    • Fire clam (amazing thing)
    • red brain coral
    • nennie (he has finally stopped moving)
    Did i mention lots of green algae:lol:
     
  19. smartegoutte

    smartegoutte Thread Starter

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    Neil i have the following pumps

    • 4500 lph pump from sump back to main tank
    • 2500 lph pumping through skimmer
    • 2 off resun wave makers in tank
    • mechanical canister filter large
    • small recirc pump in DSB sump to break surface
    • 1500lph seio pump for extra circulation in main tank
     
  20. smartegoutte

    smartegoutte Thread Starter

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    Neil i have the following pumps

    • 4500 lph pump from sump back to main tank
    • 2500 lph pumping through skimmer
    • 2 off resun wave makers in tank
    • mechanical canister filter large
    • small recirc pump in DSB sump to break surface
    • 1500lph seio pump for extra circulation in main tank
     
  21. smartegoutte

    smartegoutte Thread Starter

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    Neil i have the following pumps

    • 4500 lph pump from sump back to main tank
    • 2500 lph pumping through skimmer
    • 2 off resun wave makers in tank
    • mechanical canister filter large
    • small recirc pump in DSB sump to break surface
    • 1500lph seio pump for extra circulation in main tank
     
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