Weird Parameters (high calcium and phosphates)

[joefeets1]

How’s it going everyone?

so I’ve been at this saltwater tank thing for a couple months now and everything has been pretty stable. Today I tested my water and noticed that my parameters were as follows:

Salinity- 1.252 (33.5 ppm)
Temp- 77.2 f
Alkalinity- 10.3 dKH
PH- 8.2
Calcium- 513
Phosphate- .90

my tank is a waterbox 20 cube. I run filter floss and chemipure blue in the first chamber. And a decent number of marine pure cubes and bits of rubble in the second chamber.

 

[lapin]

0.1 to 0.2 is ok
0.90 is very high
its either a testing error or you are somehow adding Po4 to the tank.
Could be in the water changes or over feeding
Maybe post your nitrate