Is There Such Thing As Having Too Much Calcium?

[jiggy]

is there such thing as having too much calcium?.. like what if someone had 500+ppm calcium

 

[rickyfins]

Then your alk is low man, test it and see, I bet its like 7 or 8. Calcium directly affects Alk levels, and Alk levels directly affect Calcium. Thats one reason I don't test Calcium. If my Alk is high, I dose KALK. If its low I add a buffer. I only worry about ALk because Calcium falls right into place if you stop chasing different #'s and only regulate one of them. The chemical inbalance chasing both numbers is hard on a system. Just try to balance Alk levels, and then check your Calcium, I bet its close!

thanks,

Rick

 

[drake66]

also it might ppt onto your equipment (i.e. impellers)

 

[jiggy]

my alk is 5meq/l

 

[CAreefer]

To answer your question, yes, one can have too much calcium. I don't remember the actual number but at some point the water is saturated and the calcium comes out of suspension and ceates a "snowstorm". Basically calcium flakes floating throughout the water.

HTH
CAReefer

 

[drake66]

toldja

 

[jackson6745]

<a href=showthread.php?s=&postid=6761565#post6761565 target=_blank>Originally posted</a> by jiggy
my alk is 5meq/l

U need to turn down your reactor

 

[jiggy]

5meq/l is 10dkh right?

 

[drake66]

+12dKH
--------------------->
normal ranges
2.5-4 meq/L =
7-11 dKH

 

[Casshern]

I think the solubility constant for CaCO3 is 3.8 x 10-9 mol/l for the calcite form and 6.0Ãâ€"10-9 mol/l for the aragonite form. Throw in similar/common ions and that number decreases. Sorry if this information is kinda irrelevent, since I'm not sure what other common ions are in the water we use, plus it varies depending on temp and other parameters I don't quite remember at the moment. But that should about give you an idea of the max you can actually have; and a very nifty fact to file away, if I haven't negated any common chemical laws and gave you total BS (which I'm sorry in advance if I did. Brain's not working like it used to).

it's a simple conversion to ppm from there. but fwiw, the highest Ca level I've ever titrated for, in a tank was about 700-750 ppm. I haven't sat down and actually calculated anything out, so please take this anecdotal information with a grain of salt. Dry, dork humor inteeded

edit: all the spelling/grammar mistakes have been fixed hopefully. Sometimes, I don't type the things I'm thinking for some reason.

 

[drake66]

i liked that movie Casshern so much eyecandy

 

[Casshern]

yes it had potential. shot entirely on digital film and had a lot of painstaking cg; but to quote one reviewer, it was nothing more than a "pretty image." I liked it though. I just thought it could have been executed a little better, as well.