Re: Kh/Ph/Ca lesson please

Mark,
thank you for the reply.

Is Instant Ocean any good?

Also, I'd hate to do massive water changes, and 5%s are probably not
going to make a big difference any time soon. Is there a safe KH
buffer I can use to stabilize KH and Ca?

Off topic:
Cudos on you web page.
It was one of the first pages I read since starting in the hobby and
it was VERY helpful, especially critter IS and sun coral info :)

Best regards
Yuri



On Wed, 24 Aug 2005 06:13:29 GMT, Marc Levenson <melev@xxxxxxxxxx>
wrote:

>The problem is Oceanic Salt. I used it for 9 months, and could not get
>my Calcium level down where it belonged. It ended up killing many of my
>SPS corals, and I stopped using it finally.
>
>My tank showed improvement when I went back to Kent Sea Salt, but then
>PO4 and NO3 have both been giving me grief. I finally got PO4 under
>control after months of hard work, but I only found out last night my
>NO3 is sky-high -- my test kit was giving me false readings all this
>time. *sigh* Now I'm working on that, so I can finally have gorgeous
>corals again.
>
>Marc
>
>
>Yuriy Krushelnytskiy wrote:
>> 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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