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Old 01-11-2007, 06:15 PM   #1
DevilBoy
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Test results are in


Ok i got my SeaChem reef calcium test kit today. I tested 2 times and got the same result. It was no where near what the Salifert was giving me at 260ppm. The seachem gave me a Ca reading of 390ppm, both times. I even reference checked it with the reference solution in the kit was which is 437ppm. When testing the reference solution i got smack on 437ppm. So i am going to believe this kit at 390ppm over my salifert which gave me 260ppm.


The only thing i dont like about the seachem test, is they give you alittle beaker and you have to fill that up with ro water and dump into test vial with the tank water sample, anyone know why this is?
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Old 01-11-2007, 08:48 PM   #2
ChrisPrusha
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That's quite a difference between the two tests! Consider taking a sample to the LFS and getting a third opinion.

I am not familiar with the Seachem test, but I prolly couldn't answer your question even if I was.

I am sure someone will speak to that soon.
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Old 01-11-2007, 08:58 PM   #3
reefermike1
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wow that is quite a differance. kinda scary to hear honestly!! any way u can check the reference solution with the salifert kit?
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Old 01-11-2007, 09:27 PM   #4
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I have heard that some test kits don't "see" all the calcium in the system due to the way calcium bonds with other Ions. It has been a while since reading this but I belive that some kits only measure the free Ca++ ion and once the form into CaCO3 (calcium carbonate), the no longer can read them. Of course this was many years ago, and maybe this has changed.
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