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Old 07/19/2015, 04:43 PM   #1307
DNA
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Join Date: Oct 2001
Location: Iceland
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I'm sure Salifert is not consistent as the kit ages.
Below is from this thread.. http://www.reefcentral.com/forums/sh....php?t=2273650

14 months have passed and today I got 3 new Salifert test kits.

The old calcum test kit gave a reading at 340
The new calcum test kit gave a reading at 375

The old alkalinity test kit gave a reading at 5,7
The new alkalinity test kit gave a reading at 5,7

The old magnesium test kit gave a reading at 1185
The new magnesium test kit gave a reading at 1350


There is a tendency for the calcium kit to drop as it gets older.
Three comparisons have revealed 40, 20 and 35 lower numbers in the older kits.
The kit that showed higher value the year before will become the lower next year.

Alkalinity stayed at 5,7.

Magnesium I'd say is more correct for the old kit compared to my Ca and Alk levels.


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This issue with my low calcium readings and the massive amounts of added calcium without any coral growth is a side effect from the dinoflagellates combined with the Saliferts kit inconsistency over time.

For a very long time I had white coraline coverage on all well lit areas and purple everywhere else.
For the last few months everything has turned purple like it's meant to be.

I've had a derasa clam for more than a year. It seems to be healthy, but I can't tell if it has grown at all.


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