First Corals aren't doing great.

[vetteguy53081]

Thanks.
Here are my parameters:
Temp 77
ph 8.2 (API)
salinity 34/1.026 (refractometer)
nitrate 40 (API and Salifert)
phos 0 (API)
Ammonia 0 (Salifert)
mG 1600 (Red Sea)
Alk 9.1 (Red Sea)
CA 450 (Red Sea)

I realize API tests are questionable, but for those parameters, API is the only test I have on hand.

Mag and nitrate very high
I would suggest taking a good water sample to a trusted LFS that does Not use api test kits and have them test the water for you and see what results they come up with

 

[Philly Reefer]

Or better yet.. since that FOWLR tank has been up a while, send an ICP test.
If there is copper in the water, that might be your issue too

 

[jradishness]

My Red Sea test kit reads high mag too. I think there is a thread on the forums here about it. My Red Sea kit always read off the charts for Mag, but I never saw any problems.