calcium problem

[tony667]

My calcium is 700+. How can I lower it. Can someone please help me. I don't add any calcium so that isn't it. It has been like this for months. I but differt testers. They say the same thing

 

[llewoh05]

i think you should run your water sample down to the local LFS and see what they say.

 

[bertoni]

What brand of salt are you using? Oceanic tends to run rather high in calcium. Have you tested some freshly-mixed saltwater?

The calcium should decline on its own if none is added and the tank has a good alkalinity level. What's the alkalinity currently?

 

[tony667]

I already did that.

 

[tony667]

I use quick dip and it is 300pm I use tropic reef ready salt. No i haven't tested new salt water

 

[bertoni]

Do you mean alkalinity is at 300ppm? That's very high. Are you adding any supplements at all to the tank?

 

[tony667]

nothing with calcium in it

 

[bertoni]

If you aren't adding anything with calcium, and the test results are correct, the salt mixture is probably the issue. You might want to check your SG, I guess, but those numbers are far too high. What are you dosing into the tank all told?

 

[skylab1]

Ca at 700ppm is very good, my is at 600 and going up hope to getting up to about 1200 soon. So leave it alone, your corals will thank you.

 

[bertoni]

I don't see any reason to maintain calcium over 450ppm. At some point, when calcium is raised, alkalinity will be forced too low or a precipitation event will occur. This article talks about Ca problems:

http://www.advancedaquarist.com/issues/nov2002/chem.htm