struggling with low alkalinity

Discussion in 'General Discussions and Advice' started by Goby, 23 Dec 2009.

  1. Goby

    Goby

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    Hei reefers,

    Hope you guys can help out here.

    Have done a water test this morning and this is the results.

    Temp: 25.6
    SG: 1,025
    PH:8.1
    KH: 2.0
    Ammonia: 0
    Nitrite :5
    Nitrate: 20

    I can't get the alkalinity higher. i have used tropic marine buffer but not going up.
    I have tried carbonated soda from robertson's. still nothing. i am dosing coral supliments every 2 days. I have read that when using coral supliments the tropic marine buffer won't be as effective. any light on this?
     
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  3. JD167

    JD167

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    Tagging along.
     
  4. Sentari

    Sentari

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    Try another test kit. That doesnt sound right. Or goto the LFS and have them test it for you.
     
  5. Goby

    Goby Thread Starter

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    sentari, i'm using seachem test kit which is suppose to be good?? one thing i didn't thinks of. there is some reference samples with the kit. i'll test that and check the results
     
  6. JD167

    JD167

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    I have the same problem. Also using a Seachem kit. I can't get my Alk above 3.5.
     
  7. inflames

    inflames

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    I seriously say that your Test Kit is wrong. There is no way that your dKH could be at that level. Get another test kit or get your LFS to check it for you!
     
  8. mnd123

    mnd123

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    Wow, thats very low - mine is at 6-7 which I am battling to get up (try Seachem Reef Builder) but at 2, you will start losing corals
     
  9. Falcon

    Falcon

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    something doesnt sound right...try upping your calcuim levels and magnesuim levels a bit also...the test kit doesnt seem right get that double checked at the lfs
     
  10. maj

    maj

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    goby,are u using saltmix or aquarium water?
    i had the same issue with the aquarium water im using,i just used seachem calcium and carbonate alkalinity alternate days,boosted my levels after a week.
     
  11. Falcon

    Falcon

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    he cant be using aquarium water he is over 600 kilometers away from the sea:lol:
     
  12. Tobes

    Tobes Retired Moderator

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    I agree, something isn't right. When my kH dropped to 6, I dosed 2 teaspoons of bicarb in a 2 litre coke bottle filled with RO water, dripping it in over a few hours. That picked up my kH to about 8,5 on my 500litre system.
    Do NOT dose anything more until you're 100% sure about those figures. The kH in NSW is about 7, so if you do your normal weekly water changes I cannot see how it can drop to 2. What corals do you have and how big is your setup?
     
  13. Monti

    Monti

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    I dont think its KH (the PH is spot on)- that reading looks like Meq.

    Just out of interest, whats your MG and CA?
     
  14. martinhal

    martinhal

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    Are you sure you are reading the correct scale , are you sure its not 2 meg/l :biggrin:

    1 meg/l x 2.8 = 2.8 dKH.
     
  15. IMarine

    IMarine

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    Hi guys yes check your test kits,the best way to buff your kh is to use reef builder and dose every day till you got your desired levels and then if your levels drop very fast then check your calcium and mag ,aim for 400 cal and 1400 mag by doing this you will have a better and stable kh
     
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