KH/Alkalinity

[Laurabelll]

Hi there,

I have a 125 gallon reef that has been established for about two and a half years now. It is really self sufficient now. All of my corals have at least doubled in sized the last year. My fish are happy. I just tested my tank using salifert profi-tests. Here are my results:

Ammonia - 0
Nitrite - 0
Nitrate - 0
pH - 8.2
mag - 1350
Calcium - 475
Phosphate - 0
KH - 11.2
ALK - 4.00
Stronium - 10
Temp - 78

My dilemma is why is my KH/ALK so high? Is this bad? Everything I can find to read about it talks about them being too low. If it is bad, how do I fix it? I would appreciate any educated/experienced advise. Thanks! Laurabelll

 

[Randy Holmes-Farley]

I recommend 2.5-4 meq/L (7-11 dKH) for alkalinity. So it is fine.

If it were high, you can just let it drop on its own with no alkalinity additions, but you need not do anything.

Solving Calcium and Alkalinity Problems
http://www.advancedaquarist.com/issues/nov2002/chem.htm

 

[Laurabelll]

That is a relief, many thanks.

 

[Randy Holmes-Farley]

You're welcome.

Happy Reefing.