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    Base of coral receding

    any updates on this situation?
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    Base of coral receding

    Phosphate leeching from the rock into the base of the coral. It could be flow, but from your description, I kinda doubt it. I feel the same on lighting issues, but only if the specimen is overshadowed or has overhangs shading it. How old is the rock it's on, and is all the rock in your system...
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    Using Kalw w/calcium reactor

    Heh! I may have mised your actual question. Yes, the use of a Kalk reactor will remove the excess CO2 that might otherwise be available to algae for growth, but the conversion into alkalinity in a marine system accounts for the whereabouts for most of the CO2 anyway, so that accurate and...
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    Using Kalw w/calcium reactor

    :D I have to come over and post at least once a year... ;) Using kalkwasser and CO2 reactors won't hurt, as if there is an excess of CO2 in the water column, it will fix the issue and supply extra Calcium snd Alkalinity as a bonus, but this is usually an unnecessary fix if you have a Ca...
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    Using Kalw w/calcium reactor

    at the local pH of the microenvironment created by the kalk (high pH due to concentration of (OH-) ion from Ca(OH)2). the hydroxyl ion reacts with the dissolved CO2 as carbonic acid Carbonic acid is a carbon-containing acid with the formula H2CO3, the name usually associated with solutions of...
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    MOJO !!! So much for my Mg comment

    comments? heh, just stirring the pot...
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    MOJO !!! So much for my Mg comment

    Don't you think it is more than coincidental that Mg and Sr are both divalent (as is Calcium) and that total (not locallized) concentrations are near that of oceanic water ratios in molar terms in these skeletons? :D hmmm... Mike, interesting that this came up here, I had been looking at...
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    All right, Mojo; we want MACNA details!

    Heh, Mike was agging it on, and in retrospect, Joy was having a hard time keeping a straight face... My favorite response was when I looked at Julian, he said "she got me too..." It looked so REAL! I guess that Walt will have something for the folks with FOWLR tanks that don't want to...
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    MACNA anyone?

    I know that Mike (Mojo) is going, anyone else from the PNW?
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    alkalinty and ph levels

    It will not really matter to the stability of your calcium nor alkalinity levels if they are allowed to drop to the 350 PPM Ca/ 2.5 mEq alk range in and of itself, although it may make it difficult for the levels to go back up to where we want them. In FO systems this will not really have much...
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    Care to solve a mystery?

    Man, SOMEBODY has been doing their homework! :D Actually this is not unknown, especially in the natural environment, my concern is what is doing it in the closed systems, and why has it not turned toxic in DSBs??? We don't see these anaerobic sulfide reduction areas near the surface in reef...
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    Care to solve a mystery?

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    Care to solve a mystery?

    On the longivity of the DSB, these are exactly my thoughts on the process. It does require good husbandry and it does require careful export as well and controlling imports to avoid the sinking of end-detritus. The problem arises when we depend on the bacteria solely (and sometimes...
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    Care to solve a mystery?

    Most of the "trash" that is end detritis will be in the "brown stuff" that was suspended in the removal process. This is the stuff that ends up in the substrate of DSB's when it has been processed through 10 to 12 gut cycles of creatures in the food chain. Supposedly there is nothing left to...
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    New member

    KC!!! TRT jumpers... heh heh heh!!!
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    New Member from SC

    heh! You KNOW it... btw, I tried to get into some of the chemistry threads, they are locked, is this because they are archival or are the forums just not ready for use? Heh, Jeff and Geoff, the "J crowd" spreads like majano...
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    New Member from SC

    Cath who??? btw, slick site
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