A kalk stirrer is just that... a device that stirs a kalkwasser solution. It is used to keep higher concentrations of it in suspension during dosing. While it helps get the most from the kalk, it cannot make up for the fact that Kalk is not the best choice to try and raise Ca levels...too much affect on PH. Kalk should be primarily used to maintain Ca not raise it.
A calcium reactor on the other hand is capable of raising Ca with out so much of a PH effect.
Which one you use is up to you and the demand for Ca and Alk by your tank. Some people may even use both as a balanced solution. I would recommend you check out the chemistry forum for more info.
Both Kalk stirrers and CA recators add calcium and alkinity in a balanced fashion that is in the ratio that corals consume both to make their skeletons.
If you only drip clear Kalk you add almost no impunities while a CA reactor will add to the tank everything in the media both good and bad. So any magnesium and strontium in the media will be added but so will any phosphate. Greg Hiller has written some articles about impurities in reactor media if you want to know more.
A CA reactor also allows you to add much more CA and ALK than kalkwasser. Because Kalk can only be mixed with fresh water, you can't add any more than your amount of evaporation while a CA reactor uses salt water so evaporation isn't an issue.
A major difference between the two is how they effect PH. A Kalk stirrer will raise the PH significantly relative to the amount of calcium added while a CA reactor can slightly depress PH.
I apologize for not having anything pertinent to the topic to add, as it has all been said already...but came in to read the thread because I am about to setup both a calcium reactor and a kalk reactor.
The reason I'm commenting is that poppin_fresh's avatar is KILLING me. That looks like Bob Ross, the guy that painted scenery on PBS back in the early 80's like NOBODYS BUSINESS. Not to mention he used knives to do the painting. I'm gonna sound stupid if that's not him though...
<a href=showthread.php?s=&postid=13118723#post13118723 target=_blank>Originally posted</a> by Semper Fi 1959 I apologize for not having anything pertinent to the topic to add, as it has all been said already...but came in to read the thread because I am about to setup both a calcium reactor and a kalk reactor.
The reason I'm commenting is that poppin_fresh's avatar is KILLING me. That looks like Bob Ross, the guy that painted scenery on PBS back in the early 80's like NOBODYS BUSINESS. Not to mention he used knives to do the painting. I'm gonna sound stupid if that's not him though...
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