CAl and alk levels

[Skimmerking]

WTH, Well I tested my Levels and my ALk is 9.0 DKH , which is great IMO. Now my Cal is 490PPM. What the heck is up with that.

I have a Kalk Reactor that is dosing a drip every 5 seonds. Now in my tank I have 7 clams,1 maxima clam, 3 derasa's 3 crocea's a have a small colony of sps that is 5x5 about there, and a frag that is 3x3 and I have some lps's in the tank, open brain, bubble coral, well you get the picture. I hooked up a Sulphur reactor and and have been watching it to seed. so My nitrates are about 40 in that range, so I wanted to get the nitrates down the natural way and ended up doing a 15 gal water change in my tank total water volume is about 140 gal. I use IO salt and I know that the CAL level in the salt is 390 ppm and ALk is about 8 something. SO my Question is.............................

HOW IN THE HECK DO I GET MY CALCIUM DOWN. ITS 490ppm...............

[BC564]

I have been having the same issue for the last month or so.....but I dont know how my CALCIUM got so high......Im sitting at 500....I dont have a reactor.
Sorry....my dKh is 9 also

[untamed]

Well...generally speaking, you can't bring Ca DOWN...you can only bring both Ca/Alk down, then try to rebalance by adding whichever one ends up low.

So if you think you are too high (which could be debatable), slow your reactor down just a bit and wait. Both Ca and Alk should fall. If the Alk ends up low, you can dose a bit of baking soda to adjust.

[Skimmerking]

that is what I figured I didn't think you could bring CAl down..

[BC564]

and if you dont have a reactor? Just wait it out?

[Megalodon]

My calcium is off the scale, more than 500ppm as per my Salifert test kit. And that's the case for freshly mixed saltwater too. Something about Tropic Marin.