Is what a lot of people do is use a calcium supplement to bring the calcium
up, then dose kalkwasser to keep it there. You may consider adding some
calcium in the morning, then test in the evening, then dose kalk overnight.
Repeat until you get the calcium and alk where you want them then just dose
the kalk and monitor your calcium and alk levels by testing every few days.
Careful with the calcium and kalk additions to (you may want to go half
doses on the calcium), because if you overdo it, the calcium will
precipitate out of solution and F your tank up.

IMO

Shane C.

        -----Original Message-----
        From:   [EMAIL PROTECTED]
[SMTP:[EMAIL PROTECTED]]
        Sent:   Friday, May 18, 2001 10:21 AM
        To:     [EMAIL PROTECTED]
        Subject:        RE: high Alk,  low calcium

        Thanks Shane,  I have some Kent Calcium as well as some Kalkwasser.
I will 
        give one of them a try to bring up the calcium and with any luck it
will pull 
        the Alk down.  

        Steve 

        ---------- Original Text ----------

        From: "Shane Clays" <[EMAIL PROTECTED]>, on 5/18/01 11:18 AM:

        Nope. Actually the opposite. When you raise your calcium, your
alkalinity
        can (and generally will, unless you counter it) drop. I have to add
a normal
        dosage of alk buffer (what the directions say to use to raise
alkalinity)
        just to keep mine at 4-4.2. I can tell when my calcium levels are
starting
        to drop, because my pH will start to go up and along with that, my
alk goes
        up as well. That means it is time for calcium.

        I use a different system than most people on this list use. I use
Sea Lab 28
        calcium blocks and Aquarium Systems pH and Alk., buffer. I add
blocks about
        once a week and then buffer daily in my drip water. It works very
well and
        keeps the system pretty stable.

        Any ways, if you raise your calcium, which you need to do if you are
trying
        to grow stony corals, than your alk will fall. Best bet is to raise
calcium
        slowly, and test your alk and calcium frequently until you have them
stable.
        Most people shoot for the 3.6-4.0 for alk and 400-450 for calcium.

        IMO
        Shane C.

                -----Original Message-----
                From:   [EMAIL PROTECTED]
        [SMTP:[EMAIL PROTECTED]]
                Sent:   Friday, May 18, 2001 10:07 AM
                To:     [EMAIL PROTECTED]
                Subject:        high Alk,  low calcium

                Perhaps I am misunderstanding water chemistry,  I have high
Alk,
        but my 
                calcium is a bit low  320 ppm.   If I try to raise my
calcium wont I
        cause my 
                Alk to go even higher??

                Steve 

                ---------- Original Text ----------

                From: "Shane Clays" <[EMAIL PROTECTED]>, on 5/18/01 10:44
AM:

                All of my corralline algae on my LR dies off (turns white)
in my
        system,
                except on shaded areas of the tank, like the glass under my
sea
        swirl. I
                think, at least in my tank, that it is due to too much light
for the
                corraline. I have about 10.5 wpg, and it just seems to be
too much
        for
                corraline. My alk runs at about 4.2, pH at 8.3 and calcium
at
        420-450 so I
                know it is not that....

                FWIW 
                Shane C.

                        -----Original Message-----
                        From:   [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]]
                        Sent:   Friday, May 18, 2001 9:40 AM
                        To:     [EMAIL PROTECTED]
                        Subject:        Re: corraline algae

                        Sounds like normal 'cycling' assuming your water
chemistry
        and
                lighting are 
                        good to go. I don't usually do it, but some people
will turn
        over
                the LR 
                        allowing shade on the areas whitening. HTH
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