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#1
01/04/2008, 08:45 AM
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Low Alk and high Calcium ?
Just tested my water and my Calcium was 490 and my Alk was low with a reading of 6.4. other readings nitrate to low to read! Phos 0.0 ,Ph was 8.5
How can i get my alk up? what should i use to dose? |
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#2
01/04/2008, 08:52 AM
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6.4 dKH or 6.4 meq/L?
Assuming it is 6.4 dKH, baking soda or a commercial buffers are a fine solution for now, but eventually you'll want to use a balanced calcium and alkalinity system, IMO. This calculator shows how much to dose: Reef chemicals calculator http://home.comcast.net/~jdieck1/chem_calc3.html and these articles should help: Solving Calcium and Alkalinity Problems http://www.advancedaquarist.com/issues/nov2002/chem.htm The “How To” Guide to Reef Aquarium Chemistry for Beginners, Part 2: What Chemicals Must be Supplemented http://reefkeeping.com/issues/2007-04/rhf/index.php How to Select a Calcium and Alkalinity Supplementation Scheme http://www.advancedaquarist.com/issues/feb2003/chem.htm
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Randy Holmes-Farley |
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#4
01/05/2008, 11:53 AM
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yep
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2 ocelaris 1-1.5", 1 bandaii cardinal, 1 yellow watchman goby 1 pep. shrimp, 10 nas, 1 astrea , 1 cerrith snails Some softys PH 8.1, Alk 11, NH3/4, NO2, NO3 0, Temp 77-79F, SG 1.025 |
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#5
01/05/2008, 11:57 AM
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Use the calculator above to see how much to dose. It is the same as baking soda or sodium bicarbonate
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Randy Holmes-Farley |
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#6
01/05/2008, 05:16 PM
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How is the ph high with a low alk? Dosing for alk will only raise the ph, right?
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#7
01/05/2008, 05:47 PM
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High pH (above 8.5 or so) when not using limewater is often simply testing error, but some tanks with poor aeration and lots of photosynthesis may get that high during the day. Mine does, but I use limewater.
Dosing baking soda to boost alkalinity can actually lower pH a tiny bit, at least until the tank blows off the extra CO2.
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Randy Holmes-Farley |
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#8
01/07/2008, 03:33 PM
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Just tested my water and my alkalinity is now 8.5 dkh and my Calcium 480
bit of a drop in my calcium when the alkalinity went up! going to use calk from now on and not just a Calcium booster, Ah well you live and learn thanks for the help.
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#9
01/07/2008, 04:51 PM
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You're welcome.
Happy Reefing.
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Randy Holmes-Farley |
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