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#1
11-25-2007, 10:15 PM
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high magnesium in oceanpure pro
i usually never test my water that i make up for water changes, i have been assuming that the levels are where they should be. silly me.
lately i have noticed my magnesium climbing higher and higher and today i tested it at 2000 ppm. now i know that oceanpure has high magnesium, usually around 1600 ppm, but that would not explain my high magnesium. I have also had problems maintaining my alkalinity lately, so i finally checked the ocean pure. 2300 ppm magnesium. 6 dKH. pH 8.3. 350 ppm calcium. so i went to golds and got a bag of reefcrystal since i used to use it about 6 months ago. 1400 ppm magnesium, 400 ppm Ca and 10 dKH. pH 8.3. thats more like it. anyone else experience this with oceanpure?
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If it is alive, I can most certainly kill it 
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#2
11-26-2007, 12:59 AM
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Yes...I had batches of Ocean Pure Pro that read like that. As annoying as it is, I measure the Ca/Alk of every batch I mix now.
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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#3
11-26-2007, 02:24 AM
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I often test around 1500 ppm on a new batch of oceanpure pro. My next bucket of salt won't be oceanpure pro though because of it's insane ammount of magnesium. I'd rather have something on the low side and dose it to my desired levels. It's easier to add calc/alk/mag than to remove it.
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Everything I put in my tank is fully dependant on me.
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#4
11-26-2007, 04:00 AM
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When you test make up water you can't just take a reading from a portion of salt from a bag, you need to mix the entire bag to get an accurate measurement. Otherwise you're going to get different results every time.
The pro is high in magnesium, if you find this level climbing you could simply switch to the regular. Also Ocean Pure salt is low in ALK, I believe it contains higher than normal Boron levels which also in turn produces inaccurate results on the high end for test kits. Meaning with ocean pure salt you need to maintain higher than normal alkalinity to achieve normal alkalinity levels. Make sense?? I'm not 100% on this but do remember reading this a few places. Not to add to it, but OP is also low in iodine which is bad for inverts, many users will find their crabs and shrimp parish more than normal. I used this salt at one point but have since switched to TMP and much happier.
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#5
11-26-2007, 04:22 AM
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Tagging along.
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#6
11-26-2007, 01:47 PM
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it just seems much easier to use IO Reef Crystals at this point. i dont have to mix the whole bag, the levels are where I like to see them, and i dont have to worry about boron messing with my test kit.
sphelps.. im not sure what you mean i have to maintain even higher ALK with the oceanpure. my elos dKH test kits reads 6 dKH with the ocean pure. i would like it to be around 9. so what you are saying is that it has to read like 11 to be 9?? Im very confused now. like i said. seems much easier with the IO RC. tests perfect. even in little batches which works better for me as i dont have room for a 50 gallon drum of premixed water.
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If it is alive, I can most certainly kill it
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#7
11-26-2007, 05:06 PM
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Quote:
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