[reefnewbie83177]

Hi all,
So I have been having really high magnesium in my reef tank. Here are my Params:
NH3: 0
NO2: 0
NO3: 0
Phosphate: undetectable
SG: 1.025-1.026
Temp: 78.6 - 78.8
Alk: 8.7 - 9.5
Ca: 450 - 490
Mg: 1700

I feed once a day with frozen mysis/krill/etc and one strip of Garlic Soaked Nori. I use Instant Ocean Sea Salt. I used Purple a while back, and I know that does contain Mg.

I have a low bioload. In my 90 gallon + 30gallon sump I have the following stock:

Yellow tang
Sailfin tang
Coral beauty Angel
Dragonet
Two Clowns

3 Acros (small frags)
2 montis (small frags)
Frogspawn
Hammerhead
green star polyp
button coral

RBTA Anemone
A lot of other inverts (hermits,snails, shrimp)

Everything looks just fine and I am not too worried about it, but just odd. I dose 20mL of BRS 2-part solutions. I am using a red sea pro test kit. I just don't know where all this Mg is coming from. I plan on getting a salafert test kit, and I will be testing my Instant Ocean salt as soon as it is ready.

Any other ideas? Should I be worried? I am getting great growth on my SPS and the coraline algae is growing nicely.

Thanks