Calcium too high?

As long as the alkalinity and magnesium are in line the calcium will balance itself out in time.
 
So how new of a tank and why are you testing calcium already? Not that it's a bad thing to test. Do you have any critters in this tank yet?
 
The alkalinity is 10dKH. I don't have a magnesium test. It's only a few weeks old. I just have snails and hermits. I figured I'd go ahead and test the calcium to see where it was at...when should I start testing it?
 
So far it sounds fine. Which salt mix are you using or do you buy premixed salt water?
 
You should be fine. I'm kinda suprised that the salt mixed up to that level. What is you sg or salinity? I think you should test calcium when you have animals that consume it such as clams and stony corals. It is always a good idea to run all your tests regularly. It could also be that your test kit is reading a bit high. A second opinion is always a good thing too.
 
Do RODI units remove calcium? I have well water that is extremely high in calcium (turns everything white). If that's the case will it always be high?
 
A correctly functioning ro/di unit should remove everything except hydrogen and oxygen. If your water is very hard going in, the membrane may wear out faster than normal however. Check your TDS coming out of the membrane and then again coming out of the DI. It should read very close to zero if not zero. A Total Disolved Solids meter is not very expensive and it'll tell you when to change the filters.
 
@paige wrote:
I have a TDS meter...my water is at zero. said:
Then that CA reading has to be coming from the salt mix. Sometimes if you use a small batch from bucket or bag without mixing it (the dry salt) first you can get a patch high or low in something but that is usually rare these days.
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@paige wrote:
I make my own water...I use Reef Crystals. said:
Check Mg of the water, I had the same issue with Reef Crystals, kh of 10, Ca of 500+, Mg of 5-700.... Using the reef crystal salt made it difficult to keep the water in balance, so I switched brands.
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That is sweet, Ca at 500+, i'd be surprised if your Mg is low with those levels, whatever you're using to get Ca that high, give it to me :lol: .
 
Your calcuim cannot get too high.

One it gets to the point that it is 'too high' it will naturally dissapate from the water via evaporation.

And also before you get to that point you will have alkalinity problems.
 
@aentrop wrote:
Your calcuim cannot get too high. One it gets to the point that it is 'too high' it will naturally dissapate from the water via evaporation. And also before you get to that point you will have alkalinity problems. said:
lol, water cloudy? Could be calcium precipitation. Too much calcium is not generally good unless everything else is in balance.

Here is a good link from a Randy Holmes-Farley on Calcium and the bonding properties. Precipitation and supersaturation are both covered.

http://www.advancedaquarist.com/issues/mar2002/chem.htm
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