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#1
06-11-2006, 05:27 AM
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keeping calcium
i'm having problems keeping my calcuim levels up in my tank,looking for advise.
i have a big toad stool that i am guessing it is absorbing most of it.i thought of trying magnesium but don't know,please help
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150gal,27gal sump,2-150 watt mh,2-atinics,2-10000k, 8watt moon,skimmer,rena xp3,80lbs live sand,180lbs live rock,sps,ribbon eel,tomato clown,chocolate chip star, sea hare,cowfish,birdmouthwrasse,longnosehawk 
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#2
06-11-2006, 07:03 AM
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what is your alkalinity at....if your alk is low it will pull your calcium low!!(I think)
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500G Mixed Reef  __________________________________ Electrician, Electronics Technician, I can help with any electrical questions you might have!! __________________________________ Kevin
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#3
06-11-2006, 03:04 PM
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Your toadstool is not absorbing your calcium. While they may use a very little bit it is doubtful. Calcium is abosorbed by calcifiying creatures such as Clams, Small Polyp Stoney corals(SPS), and to a somewhat lesser degree by Large Polyp Stoney corals (LPS). There are others but those are your big users of calcium. You need to have calcium, alk./hardness, and magnesium in balance. I try to maintain mine at close to natural sea water if I can so Calcium at 400ppm, alk/hardness at 8dkh, and magnesium at 1350-1400.
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