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marrone

The All Powerful OZ
Staff member
Vendor
Location
The Big City
Rating - 98.8%
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Albert

I used Seachem and Fastest Calcium kits and found both to be about the same in easy of usage. The Fastest sample was lighter than the Seachem. If you look at the actually calcium test kits you will see that they're pretty much all the same, same chemicals and pretty much the same way of doing the test.

That being said I used the Red Sea test kit and found it hard to use. I have never Salifert but have look at the instructions and the chemicals in the box and they were the same as the Seachem test kit.

Bottom line all 3 kits that I used produced the same results or very close to each other.

Michael
 

pecan2phat

Professional Commuter
Location
Wallingford, CT
Rating - 100%
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Albert,
I have both the Seachem & Salifert Ca test kits. I find that the Salifert is easier to use than the Seachem. With the Seachem, you also need to use distilled or 0 TDS RO/DI water for dilution. Also didn't like their scale chart, they are in 50 ppm increments. You need to use that grade school math to figure out the in betweens. (5 ppm for every .01 on the syringe)

FWIW, I have a thread going on at reef central regarding who's kit is accurate.
I started out with a Red Sea, then went to a Salifert. I always figured the RS to be inaccurate, so I bought a Seachem as a medium grade reference. Turns out that the Seachem matched the Red Sea each time and the Salifert was higher by 50-60 ppm. Don't really know which test kit is accurate, but Salifert had just sent me a new Ca test kit to validate with the one I have.
Seachem comes with a reference test and that was on the money. (still don't quite trust it yet) Salifert keeps archive samples of reagent lots to validate their accuracy with lab grade equipment. I'll do the test with the old and new Salifert and see if they are different or the same. If the same, then I tend to go with Salifert's accuracy vs Seachem and RS.

Nice case though. (Seachem)
 

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