Worried about some numbers

[Reggae Fish]

Ammonia- 0
Nitrite- 0
PH- 8.0-8.3
Temp (day) 81.8-82.6
Calcium- 380 (I started using SeaChem Reef Advantage Calcium twice a week to raise it)

I'm concerned about

Nitrate-20 ppm (I'm mainly worried about this one because I just did my weekly water change yesterday)

and most concerned about

KH- 15.7 in dKH
Alk.- 5.60 in meq/L

Your help is appreciated!

Thanks,
Justin

 

[McBeck]

what test kits are you using and are these steady params or have you noticed a recent shift?

 

[vishboy]

Wow! My alkalinity isn't even that high! I thought that I had high KH.