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Thread: Water Quality

  1. #1
    Senior Member manster's Avatar
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    Question Water Quality

    What are the ideal overall parameters for a reef tank as far as Temperature, dkh, Calcium, Magnesium, Strontium and Iodine?
    Some LFS are telling me to bump my dkh to between 10 & 11. I just wanted to get a few opinions before I start buying more corals.

    My parameters:
    SG - 1.024, dkh - 9.0, Calcium - 450, PH - 8.2, Magnesium - 1080
    Ammonia 0, Nitrites 0, Nitrates <5
    Temperature 79.5 F before the lights are turned on at 10:00 AM then starts creeping up slowly to 83 F when the lights are turned off at 10:00 PM

    Tank Denizens:
    2 Fire Shrimp, 2 Cleaner Shrimp, 10 Hermit Crabs, 2 Emerald Crabs, 20 Astrea Snails
    1-3" Kole Tang, 2-1 1/2" True Perculas, 2-1 1/2"Black Perculas
    1 White Bubble Coral, 1 Yellow Torch Coral, 1 Colt Leather, 1 Green Hammer

  2. #2
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  3. #3
    liv
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    those parameters look fine.
    you should try to find a way to stop or lower that heat spike.
    do you have fans running when your lights come on ? try computer fans and run them at less then full power.. like a 12v fan.. run it at 9v.. it will become real quiet while still push out alot of air.

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  4. #4
    Former Moderator a4twenty's Avatar
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    for that Ca level your Alk should be a little higher but as long as it's stable i wouldn't worry to much about it.
    `

    120S RR tank with 60G basement sump / fuge

    Return Pump: Little Giant 4-MDQX SC
    Water Movement: MP40W, Seio 1500, (2) Hydor K4's
    Lighting: 400W SE MH with 10K Venture
    Skimmer: Euro-Reef RS250 with gate valve
    Other: RODI, RDSB, PO4/AC reactor


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  5. #5
    Senior Member manster's Avatar
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    Question Water Quality

    RossW
    Thanks. A great informative article. I have bookmarked it for future reference.

    Liv
    Thanks. I will be working on the fans this week. Right now I am taking the temperature reading off the sump. Should I be reading directly from the aquarium itself?

    a4twenty
    Thanks. I am thinking of adding a Yellow Tang and a Blue Tang to the Kole Tang before he begins to think that he is the king of the tank. Everybody is telling me that for my size tank it shouldn't be a problem especially the way I have a lot of caves set up in my LR. Any thoughts on this? Also, how many fish can I put in there over time without running the risk of putting too much bioload that my system can't handle? Am I correct in assuming that adding corals to the tank does not increase bioload, only Calcium and Trace Elements consumption?

  6. #6
    liv
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    for the temp.. sump should be fine as long as the turn over is fairly fast.
    u have a 180 and a 50sump with an iwaki moving things around.. I say your readings are good enough in the sump.

    A4's right about the alk.. but wouldn't worry about it much as long as things are stable.

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  7. #7
    Former Moderator a4twenty's Avatar
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    Quote Originally Posted by manster View Post
    a4twenty
    Thanks. I am thinking of adding a Yellow Tang and a Blue Tang to the Kole Tang before he begins to think that he is the king of the tank. Everybody is telling me that for my size tank it shouldn't be a problem especially the way I have a lot of caves set up in my LR. Any thoughts on this? Also, how many fish can I put in there over time without running the risk of putting too much bioload that my system can't handle? Am I correct in assuming that adding corals to the tank does not increase bioload, only Calcium and Trace Elements consumption?
    tangs are usually added at the end to prevent these problems but i agree with the others, in a tank that size those two tangs should get along just fine.

    as for how many fish you can add, thats a tough one. you need to add fish slowly, allowing your bio-filter to catch up each time and watch your parameters. i keep a log so i can watch the effects of every addition and change i make has on my system. the good news is, you're not there yet :b7:
    `

    120S RR tank with 60G basement sump / fuge

    Return Pump: Little Giant 4-MDQX SC
    Water Movement: MP40W, Seio 1500, (2) Hydor K4's
    Lighting: 400W SE MH with 10K Venture
    Skimmer: Euro-Reef RS250 with gate valve
    Other: RODI, RDSB, PO4/AC reactor


    My Gallery

  8. #8
    Senior Member manster's Avatar
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    Question Water Quality

    a4twenty
    Thanks. I wasn't planning on adding any more fish for at least 3 months after the 2 Tangs. It was just a query. Right now the tank is so stable so I don't want to rock the boat. I would like to add more corals though. Does adding corals increase the bioload in the tank?

  9. #9
    liv
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    corals dont add to the bioload.. but they do release chemicals... try a frag of a sps or a lps something hardy to begin.

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  10. #10
    Senior Member ThisGeekyChick's Avatar
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    Question for the more experienced reefers..

    Won't adding three tangs to the tank first cause territory problems when adding fish in the future?
    Resistance is futile, you will be assimilated!

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