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  1. C

    Question about coraline alge

    Ok, I understand that. Corals depositing lime, or any chemical process, works by a thermodynamic property called free energy (which is basically "work" in the strict definition of the word). In this case of moving ions by corals across a concentration gradient, the "work" done, or free...
  2. C

    Question about coraline alge

    I agree the salinity is a little low. Still in a good range though. Will the corals still work harder? His alk is 440 with effectively balanced alk. This seems to be very near the ideal range of 420. I would suggest that as his Ca and Alk drop gradually, he can slowly up his salinity...
  3. C

    Kent Tech CB

    Never used it...so can't offer advice either way. If it was me, I would just use Baking Soda and CaCl2. Much cheaper and same active ingredients. Just my opinion though. Also if you are interested, I'm sure myself or someone else on the board could give you the recipe for a good homeade...
  4. C

    Question about coraline alge

    Zul, Your params look fine to me. I wouldn't worry about them. Coralline is good. Sign of a healthy tank. Can be a pain on the glass though. I have to scrape mine periodically. I use a long handle Kent Scraper. Biggest problem is the corners of the tank. I let it go on the back...
  5. C

    Magnesium

    After reading some of boomers homework assignment...I would say no. You are OK with the standard calibrant for all intents and purposes...Collin
  6. C

    Magnesium

    That is the easiest thing in my opinion. The only other option is to buy reagent grade NaCl to supplement salt. The only reason that they don't want to change formulation is a cost and profit issue. Their cost will be higher if they add another 0.8 lbs of NaCl / hundred gallons mixed water...
  7. C

    Magnesium

    Understood Mike, I do not mean it does not have an impact. I just mean it is not critical in some cases. Corals will grow over a wide range of most parameters. They may grow best at some cerain set of parameters. They may grow worse at others (or even have negative growth). I just don't...
  8. C

    Magnesium

    I PM'd you...C
  9. C

    Magnesium

    Well, this won't be perfectly accurate either then. Conductivity is based upon concentration of ions. If we consider a set of different pure salts at equi-molar concentrations and compare them, then each salt will have a slightly different conductivity due to differing ionic mobilities. For...
  10. C

    Magnesium

    Don't know what a pinpoint is. I'll defer to boomer or someone else here...sorry...Collin
  11. C

    Magnesium

    Well, I don't think it is really that critical. Test kits aren't very accurate anyway. Mg of 1290 or 1500...no difference really. Alk 7-8..same diff. Same with them all. I haven't even checked my ca or alk in 2 months. I just throw some Kalk in there now and then. I know approximately...
  12. C

    Magnesium

    How about those plastic ones you can buy? I thought I saw pictures of those in his tank too! In fact, I think plastic corals are the way to go. Then I won't even have to worry about my paramenters. :D regards...Collin
  13. C

    Magnesium

    Yes, a coral skelaton is calcium carbonate with some magnesium and strontium mixed in. What Boomer is saying is that the corals don't "precipitate" lime. Precipitation is a solubility phenomenon arising from solution phase thermodynamics. Corals "deposit" lime. Although this is chemistry as...
  14. C

    Magnesium

    Yea, the addition of BS and WS (which are bases) shot your pH up to around 12. At this point some Mg salts will drop out. Plus I don't even think BS and WS are that soluble. They are probably sitting on the bottom of the bucket too. Then overnight CO2 dissolved into your water and formed...
  15. C

    High Alk problem?

    What you need to do is bring your Ca up to 420 or so using CaCl2 or a single part Ca booster. Leave your Alk alone. No good way to get it out. Over time it will drop. During this time keep your Ca topped off to the 420 range. Once the Alk gets to 3.2 meq then you can resume balanced...
  16. C

    Magnesium

    Hey, its easy to precipitate magnesium. Just use concentrated NaOH and raise the pH to about 12. You'll drop out the Mg all right! :-)
  17. C

    Magnesium

    Ok, you have saved me some serious typing :-) I'll bet you say the same thing I would...let me read...Collin
  18. C

    Magnesium

    If you add Magnesium Carbonate buffers then yes Alk will increase. However, magnesium getting out of balance over time will not affect measured alk. Magnesium and Alk measured in an equilibrated tank are independant...unless you have problems with precipitating Lime. In this case Magnesium...
  19. C

    Low Ph

    I don't follow the logic of Alk going up when Mg goes down? Can you please explain? Sincerely...Collin
  20. C

    Magnesium

    I'm not clear why you are worried about slightly high Mg levels. I do not think the Mg is the cause of your pH problem. Even if they were, the difference between 1300 and 1500 would not cause such a significant deviation in pH. I certainly would not suggest trying to precipitate out your Mg...
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