Re: Kh/Ph/Ca lesson please

Mislav,

I use 3 different brands (faulty test kit was my first suspicion):
Aquarium Pharm, Red Sea and Mardel (test strips).
Calcium and Phosphate are the only ones without backup since those are
the only ones local LFSs stock.

I didn't test freshly mixed water recently, but 2-3 day old water
tests OK - Ph 9.2-8.3, Ca - 500, KH - 12 dKH

Also, thanks for the link. The article was is very good.


Thank you
Yuri

On Tue, 23 Aug 2005 09:47:56 +0200, "Mislav" <m@xxxx> wrote:

>My guess is that your test kits are to blaim. What brand of test kits do you
>use? How old are they? Try testing water with some other kits before you do
>any attempt to fix the problem.
>Did you test freshly made saltwater? What are the readings?
>The problem could also be that you've bought bad batch of salt.
>
>Many answers you can find by reading the articles in www.reefkeeping.com and
>going through past issues. Here is one link that could answer some of your
>questions http://www.reefkeeping.com/issues/2004-12/rhf/index.php
>
>
>Mislav
>
>"Yuriy Krushelnytskiy" <y.krushel@xxxxxxxxxxx> wrote in message
>news:59elg1pb52p7a212eloa46v6d4mid7njll@xxxxxxxxxx
>> Hello,
>>
>> I ma fairly new to the hobby (reef keeping) and probably need good
>> chemistry lesson: I am having some issues with my water parameters - I
>> can not get my Ph/Alk/Ca to balance right.
>>
>> Test results are as follows.
>> kH - 10 dKh (average between 6 samples)
>> Ca - 600
>> Ph 7.6 -8.0 (using 3 different kits)
>>
>> Phosphates - not detectable (used to be .25 about a month ago)
>> Amonia/Nitrite/Nitrate - not detectable (3 different kits)
>>
>> The tank is 90 usg + 30 usg sump/refugium.
>> I have no filters other than Euroreef protein skimmer.
>> ~150 lbs live rock (20% Fiji, 20% Tonga, 60% cultured Florida) and 3
>> inch sand bed
>> I am using Oceanic sea salt, which I think is high in Calcium and
>> Magnesium, but I still have no idea how did I get my chemistry that
>> messed up. I am not dosing any additives, not even Kalkwasser. The
>> tank is on auto top-off from RO/DI. In addition I was doing 5% per day
>> water changes for last 10 days.
>>
>> I even had my Ro/DI water tested "by professionals" and it is fine.
>>
>> Besides normal tests I did an experiment by measuring Ph straight from
>> the tank and from a sample that was vigorously aerated and results
>> were within 0.1 apart (i did 6 measurements on each sample to
>> average), so I don't think there is Co2 issue...
>>
>> My LFS suggested using an array of buffers/magic potions to "fix the
>> tank", but if at all possible i'd like to correct the problem in some
>> natural way.
>>
>> I would greatly appreciate any help.
>>
>> Also, what are good sources of information on the net?
>>
>> Best regards
>> Yuri
>>
>>
>

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