Advice on Hammer please- Coral Novice

Discussion in 'General Coral Care' started by Easy Tiger, 2 Jun 2009.

  1. Easy Tiger

    Easy Tiger Day Dreamer Deluxe

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    Hi All - please can you give me some advice. I've added a Hammer about a week ago as my first "learner" coral. I have not mounted it yet until I can tell if it's happy in it's location or not. I'm worried I am doing this wrong ...
    Whats the best depth for it in the tank/optimal lighting/optimal flow. And what's the best to feed it? Only two of the five heads seem happy and healthy, the other 3 are almost always retracted. It was in full bloom at LFS.

    PH : 8.4
    NH3 : 0
    NO2 : 0
    NO3 : 0 ( didn't trust my two test kits here,but LFS also reads it as 0 )
    Sg : 1.021
    Temp : Night 24c day 28c ( lighting accounts for the difference )
    Lighting : 1 x MH 150w 12000k 2 x T5's 39w one white, one actinic blue

    I'm not adding kalk or any Ca as this is the only coral in the tank so far. Not testing for Phosphates either...
     
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  3. Manic

    Manic Moderator

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    Your salinity needs to be raised to 1.025 and your temperature fluctuation seems very high. My tank temp changes about 0.3 degrees a day and I dont have a chiller. Get some fans it will help. You can place the torch about half way in your tank depending on how deep your tank is. As for flow try place it in indirect non-linear current if that makes any sense.
     
  4. Manic

    Manic Moderator

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    Only saw the last bit of your post now. You gonna have to test your calcium levels for this coral as well.
     
  5. Fishy Steve

    Fishy Steve Hiden super user

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    I have one of these. I agree with what manic says, but i think you had better test Phosphate as mine was high and my hammer started receding. It took him long to recover.
     
  6. Easy Tiger

    Easy Tiger Thread Starter Day Dreamer Deluxe

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    Thanks Manic / Steve

    Whats the best way to reduce phosphates if they are high?
     
  7. jacquesb

    jacquesb Retired Moderator

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    Guys - the BIGGEST issue hammer corals have, is water flow, and too much lighting. High'ish phosphates do not bother then that much.....

    EasyTiger - do you have some direct water flow on the hammer corals perhaps?

    Also where are they located in your tank? High up on the rocks? They do NOT like too much lighting.
    Where did you get them from? A LFS? Under what lighting were the hammer coral polyps in the tank, where you got them from?

    They do indeed require decent calcium levels.... and some medium lighting. BUT low water flow....
     
  8. Easy Tiger

    Easy Tiger Thread Starter Day Dreamer Deluxe

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    LFS had the coral on egg crate, about half way up the tank. I've positioned it also about 1/3 way in terms of depth, but middle of the tank directly under MH light (150w). Think LFS only used T5's...

    Water flow is medium - coral heads slowly riplling back and forth. Not direct flow at all.
    But the heads in less flow do seem to be the ones doing better...

    What/how is the best to feed 'em?

    P.S - are most corals we buy farmed or ripped from coral reefs :( ?
     
  9. Easy Tiger

    Easy Tiger Thread Starter Day Dreamer Deluxe

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    OK I took a closer look and part of it at least is in quite strong flow, so for tonight I've turned that powerhead off and will rethink it.
     
  10. Andreas

    Andreas

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    The flow could definately be the issue here.You should accimatise your coral by adding them low down on your reef and moving them up after a good couple of days until you get it to the desired height. Dont place it directly under the MH intially because the LFS probably has a lot less light:)
     
  11. sihaya

    sihaya

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    Ditto what Andreas has said... salinity needs to be higher (1.025)... and the temp swing is a bit much. Do get a heater for when the lights are off...
     
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