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Old 03-21-2004, 10:25 PM   #1
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Calcium Reactors

I kinda want to get into the hard corals like brains, and other hard corals, I heard that the lps and sps require calcium reactors, is that true? If it is should I just stay soft corals?
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Old 03-21-2004, 10:26 PM   #2
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I wouldn't say you have to have a calcium reactor. Unless you have alot of sps that is draining your calcium supply in your tank. I have quit a bit of SPS LPS and a clam and i don't have a reactor. I just dose with B-ionic everyday and my calcium is at about 440
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Old 03-21-2004, 10:35 PM   #3
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You don't have to have a Ca reactor in order to keep SPS's and LPS's. Kalkwasser and two part additives will do just fine.

Ca reactors are more of a convenience than anything else. Although in larger tanks, Ca reactors are cheaper to run in the longer term as the cost of Kalkwasser and other two part additives will continue increase. So one could make the case that in very large systems, they are extremely beneficial as far as the monetary outlook is concerned.
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Old 03-21-2004, 11:05 PM   #4
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Well... I have sea chem calcium buffer, and an alkalinity buffer, will those do fine? The reason why I am asking is I dont want to buy sps or lps and have them dead because of kalk. Im not going to have many lps or sps probably a brain and a clam (Look at my signature see if my lights are good enough for a clam) Thanks for the advice
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Old 03-21-2004, 11:15 PM   #5
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Quote:
I have sea chem calcium buffer, and an alkalinity buffer
You need to use a balanced additive eventually when keeping corals. Adding unbalanced chemicals like these to the tank can lead to problems down the road.

Quote:
I dont want to buy sps or lps and have them dead because of kalk.
As long as you "dump" kalk into the tank, you should have no problem. A simple drip system is what most people use (including me). I simply replace all my evaporated water from the tank with Kalk.

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Look at my signature see if my lights are good enough for a clam
You should be able to keep Dersa's and Squamosa's fine with that lighting. Might be able to keep Maxima's as well as long as they are placed high in the rock work.

I would stay away from Crocea's as that clam is the most light hungry of them all and would do better with a MH setup.
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Old 03-22-2004, 01:03 AM   #6
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Is kalk mixed with water when u do the evaporation drop method, and also how do u do it? I have a 55gal (dont want to mess anything up) is it a powder that mixes with water or anything? Thanks
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Old 03-22-2004, 08:43 AM   #7
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Is kalk mixed with water when u do the evaporation drop method, and also how do u do it? I have a 55gal (dont want to mess anything up) is it a powder that mixes with water or anything?
Kalkwasser comes in powder form. I have two one gallon containers I use for mixing. I simply dump 1-2 teaspoon's of Kalk in each container and then pour the water in and shake. I let it settle for 24 hours and then siphon the clear liquid out of the container and put it in my doser to be dripped into my sump.
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Old 03-22-2004, 10:34 AM   #8
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Quote:
Originally Posted by Biggen
You need to use a balanced additive eventually when keeping corals. Adding unbalanced chemicals like these to the tank can lead to problems down the road.
Why are they unbalanced chemicals? I add Kent turbo Calcium and Kent dKH buffer to my tank, are they balanced? If not what do you suggest? I'm finding it's hard to keep my levels stable just dripping Kalk.
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Old 03-22-2004, 10:54 AM   #9
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Randy-Holmes Farley can explain it much better than I could ever dream of doing:

Excerpts from CHEMISTRY AND THE AQUARIUM by RANDY HOLMES-FARLEY

Quote:
Moreover, the easiest way to ensure that things do not go seriously wrong in adding these to the tank is to use additives that have balanced amounts of calcium and alkalinity. 3, 4 For purposes of this article, a balanced calcium and alkalinity additive is one that provides calcium and alkalinity in proportions that match that used in calcification to form calcium carbonate. Using this type of additive typically prevents overdosing (or underdosing) of either of these two relative to the other.

Independent (unbalanced) additions of calcium and alkalinity do have significant uses in reef tanks. These uses include correcting existing imbalances5 between calcium and alkalinity and in “fixing” a starting salt mix that might not fit the calcium and alkalinity values that an aquarist desires. While the regular use of such additives can work well, it frequently results in substantial imbalances between calcium and alkalinity. In a perfect world, with perfect test kits used perfectly and frequently by every aquarist, such additions would work out fine. More typically, however, they lead to imbalances.
You can read the full article here:
http://www.advancedaquarist.com/issues/feb2003/chem.htm

I use Kalk and B-Ionic. When I make up my new water for water changes, I actually have to dose the Alk component of my B-Ionic as the Ca is extremely high with Oceanic salt, but the Alk is low and not balanced with it. So using unbalanced additives (or one half of balanced additives) aren't bad, but as the article points outs it would be nearly impossible to use a separate buffer and a separate Ca additive to keep them in the check all the time.

If you are having trouble keeping up Ca and Alk levels with Kalk only, you could supplement with another 2 part additive like I do.
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Old 03-22-2004, 11:46 AM   #10
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Sound great! My alk stays around 3-3.5 but I can never seem to get my CA levels above 375. I'll have to pick up some 2 part today or tomorrow.
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