Anyone have calcium laying around?

WalrusKisses

WalrusKisses

Member
Calcium is right at 380 and alk is at 8.3 dKh, now that I have more SPS, I'm hoping to get Cal a little higher.

Does anyone have any calcium I could grab for a few bucks to make a dosing solution?

Forrest
 
Please familiarize yourself with dosing. Just cause your Cal is low and supplementing it back to 420-450 makes sense you will be affecting your alk. Thats why there is a reason why people use dosing pumps for both alk and cal some sometimes with mag. Unless you have a test kit for both alk and cal. I would stick with more frequent water changes.
 
I'm aware of the chemistry involved, and familiar with dosing. I've taken several advanced chemistry courses (I'm a bio major), and obssessively research so I know waaay more than I want to about ions is a solution, alkalinity, and interionic reactions :headwallblue:

I have the tests for both calcium and alkalinity and do weekly twenty percent changes. I may be a noob, but I'm a nerdy noob. I've found that even several days after a water change, the alkalinity will drop by about .8-1.0 in two or three days unless I supplement it with a few drops nightly my carbonate solution. Most likely my salt, but until I buy a different brand I'd like to try and keep cal and alk as stable as possible with micro dosing.

If this sounds dumb, let me know, I'm by no means an expert and appreciate advice from others more experienced.

Edit: I hope that didn't sound confrontational, I tend to get wordy!
 
Last edited:
Fwiw. I use calcium hardness from Leslie pool supply's. I mix 2 teaspoons for every 20oz of rodi. I dose about 4oz a day of this mixed solution. It raises my alk by 1.0 over a week on a 50gal total water volume system.
 
WalrusKisses said:
I'm aware of the chemistry involved, and familiar with dosing. I've taken several advanced chemistry courses (I'm a bio major), and obssessively research so I know waaay more than I want to about ions is a solution, alkalinity, and interionic reactions :headwallblue:

I have the tests for both calcium and alkalinity and do weekly twenty percent changes. I may be a noob, but I'm a nerdy noob. I've found that even several days after a water change, the alkalinity will drop by about .8-1.0 in two or three days unless I supplement it with a few drops nightly my carbonate solution. Most likely my salt, but until I buy a different brand I'd like to try and keep cal and alk as stable as possible with micro dosing.

If this sounds dumb, let me know, I'm by no means an expert and appreciate advice from others more experienced.

Edit: I hope that didn't sound confrontational, I tend to get wordy!
Click to expand...

I was just pointing out anytime an individual starts dosing that its not just going to be with one item. Especially since you are adding more sps to the system. Seems your on point on the chemistry portion. Id just dial in since your adding more items to the tank.
 
My tank is a 12 gallon BioCube, probably around 10 gallons actual volume, haha. For SPS I have 5 kinds of monti, plating, encrusting and a setosa, a big green birdnest, a big poccilopora, and now two new acros. The birdnest and montis are really taking off, so I assume most of the cal/alk drain is from them. You can practically watch the monti cap grow.
 
I have the api test kit can't wait until it runs out to get the sailferts, didn't know there was a difference until recently...i just did a water change new years day
 
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