Salt with LOW Mg???

[whatcaneyedo]

Ca, Alk and Mg levels for 20 different brands are listed here:

http://reefcentral.com/forums/showthread.php?t=1714505

[ponokareefer]

Originally Posted by whatcaneyedo

Ca, Alk and Mg levels for 20 different brands are listed here:

http://reefcentral.com/forums/showthread.php?t=1714505

My Instant Ocean pales have never come close to those Mg levels, so I'd take that chart with a grain of salt.

[The Codfather]

Just about every pail I have used of instant ocean has those numbers. It might not be the best salt around, but I have found them to be consistant the last couple years.

[lastlight]

reef crystals is always low. high for the other two.

[Bblinks]

Originally Posted by ponokareefer

My Instant Ocean pales have never come close to those Mg levels, so I'd take that chart with a grain of salt.

My mag is just a bit lower than whats listed on the chart, but all the other number are bang on when salinity is at 1.026 or 35ppm. Make sure you are using a refractor for checking the salinity level or it might not be accurate and of course it will vary according to salinity level.

[mark]

Originally Posted by whatcaneyedo

Ca, Alk and Mg levels for 20 different brands are listed here:

http://reefcentral.com/forums/showthread.php?t=1714505

sort of interesting seeing the relationship between Ca and Mg right out of the pail (i.e. salts with low Ca, low Mg).

[The Grizz]

I have found that the boxes of IO Reef Crystals is lower in everything compared to the pails.