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#1
03-14-2009, 09:53 PM
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Raise your specific gravity before you do anything as that will add calcium and alkalinity. Your specific gravity should be 1.026 for a reef. You should buy a magnesium test kit as well because it is the third part of the triangle, and you need to monitor its level just as much as your calcium and alkalinity. I would say you should take about a week to raise your levels up to the proper amounts, just add a little each day. Take what the calculator tells you to add, and add 1/6th everyday or even 1/10th everyday until they are good.
Take a red through the guide in my signature for more info.  
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#3
03-14-2009, 10:14 PM
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Thank you all. Looks like I'm on a mission this week.
__________________
 10 Gal Nano Contest: http://www.canreef.com/vbulletin/sho...d=1#post348308 90 Gal Corner Pentagon Build: http://www.canreef.com/vbulletin/showthread.php?t=42263
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#4
03-15-2009, 01:27 PM
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"The lower salinity limit that most reef animals can tolerate at for at least a few hours is about 30 ppt. This represents the salinity normally found in estuaries, or around river mouths or, periodically, in some lagoons after substantial rainfall. Coral reefs are generally located in areas that have salinities in the range of 35 ppt to 38 ppt. Most of our corals, and the associated fauna including fishes, will live best at those conditions."
Comes from an excellent article on salinity and temperature here... http://www.ronshimek.com/salinity_temperature.html Check the accuracy of what you are using to measure and know that temperature can affect (in a small way) some forms of measuring salinity...
__________________
"Government is the great fiction, through which everybody endeavors to live at the expense of everybody else." -- Frederick Bastiat Last edited by Dolf; 03-15-2009 at 01:29 PM.
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#5
03-15-2009, 07:18 PM
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Oh I forgot to mention that if you are using a plastic swing arm hydrometer you should check its accuracy against either a refactometer (your LFS should be willing to do this for you), or calibrate it yourself as hydrometers are notoriously inaccurate.
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#6
03-16-2009, 12:40 AM
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I found the article I was looking for which discusses salinity and how to measure it by Randy Holmes Farley... http://reefkeeping.com/issues/2004-06/rhf/index.php . I only include it because your salinity seems so low that I question if it is an accurate reading. The begining discusses salinity and the end the different ways to measure it.
__________________
"Government is the great fiction, through which everybody endeavors to live at the expense of everybody else." -- Frederick Bastiat
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#7
03-16-2009, 01:23 AM
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When keeping stoney corals I would recommend an SG no lower that 1.024 and keep in mind natural sea water is about 7 DKH & ca is close to 400. Unless running zeo I suggest keeping the alk closer to 8-9 DHK and ca 420-440. Your fish will be fine & your corals will be happy.
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 Greg Last edited by Snappy; 03-16-2009 at 02:39 AM.
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