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Old 07-06-2004, 11:03 PM   #11
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Found a book at the LFS ... something on the order of 8 of the 14 types of Xenia are toxic. I might even have 2 different kinds on one stalk. One set of stalks stay open during night/Actinic light time ... the other set closes up.

pH is now 8.2
Alk - 9dkH (got a Salifert today )
Ca - 475-500ppm (Gotta grab the Salifert for it on Fri)

Look better? Thanks for the help!
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Old 07-07-2004, 12:56 AM   #12
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Originally Posted by dansemacabre
Found a book at the LFS ... something on the order of 8 of the 14 types of Xenia are toxic. I might even have 2 different kinds on one stalk. One set of stalks stay open during night/Actinic light time ... the other set closes up.
There are actually 60+ species of Xenia.

Quote:
pH is now 8.2
Alk - 9dkH (got a Salifert today )
Ca - 475-500ppm (Gotta grab the Salifert for it on Fri)
pH is good but I would let the Ca drop a bit and maintain the alk. What does the saltmix test at after aerating for a day?

Cheers
Steve
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Old 07-07-2004, 01:03 AM   #13
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I don't have any made up at present. Do you want to know the saltmix's pH, dkH, or Ca? Or all of the above? I remember in the past that fresh saltmix (IO) came to Ca-450ppm, and 8.2 pH. I can retest on Thursday after I whip some up (time for a water change anyways) and let you know then.
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Old 07-07-2004, 01:15 AM   #14
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IME with IO, it typically had a low Ca and high alk ratio. If your test yields the same result, then I would wonder how much kalk your dosing and how often? 350 ppm Ca to 475-500 ppm in only a few days is a pretty large swing.

I would definately urge caution before you dose the kalk again and be sure the Ca level is much lower. You may end up needing a buffer to maintain the alk though. Make sure you use the http://www.andy-hipkiss.co.uk/caalkcalc.htm]balanced calculator[/url] and try not to exceed a Ca of 450 ppm with the appropriate alk.

Cheers
Steve
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Old 07-07-2004, 02:16 PM   #15
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Yes, the Ca additive I used was going based on their recommended dosage, and it dripped overnight. I saw after the test that it was definitely way too high. Now that it's probably where I want it (will test when I get home from work), I'm going to be slow-dripping kalk continuously.

I'm a little lost on the calculator. If my Ca is 450ppm, my Alk should be 12.6 dKH?

As far as dosing kalk, the LFS says you need to watch your Mg. Will the kalk eat at the Mg? What range do you want Mg in? Anything else you can tell me about dripping kalk and the desired Ca<->Alk level would be great! Kudos to you! Thanks for the TONS of help!
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Old 07-07-2004, 06:46 PM   #16
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OK... I'm confused.
pH - 8.2
Ca - 350ppm (still Red Sea ... sorry)
Alk - 7.8dKH

what's with the crazy swing? I'm assuming I need to fix these before dripping the kalk? Ca should be at 450ppm and Alk should be 9-12dKH? If they must be fixed, should I get a Ca increaser and a Buffer? I don't want to screw up my animals.
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125 gallon saltwater: 55gal sump, 4 Blue-Green Chromis, Purple Tang, True Perc, Firefish, Royal Gramma, 5 Ricordea, Bubble Coral, 15 Pulsing Xenia, Green Star Polyps, Deresa clam, Green-Tip Torch Coral (about 11 "heads"!), Orange Montipora Cap, Purple M. Digitata, Green Slimer Acro. Yongei, 3 Orange M. Digitata, Pink&Green Acro. Millepora
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Old 07-07-2004, 07:56 PM   #17
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Originally Posted by dansemacabre
I'm a little lost on the calculator. If my Ca is 450ppm, my Alk should be 12.6 dKH?
Correct but as I said don't look for exact numbers just be in the general range. If you decide to maintain a Ca of 450 ppm, you should definately keep the alk above 11 DKH. It will prevent problems with balance later on.

Quote:
As far as dosing kalk, the LFS says you need to watch your Mg. Will the kalk eat at the Mg? What range do you want Mg in? Anything else you can tell me about dripping kalk and the desired Ca<->Alk level would be great!
Unless dosing a two part liq additive which usually contain Mg in the Ca supp, I would always suggest monitoring the Mg. Wether that be through two part dry or kalk. The Mg will either get deposited faster or simpley precipitate out normally. Alk and Ca are actually at odds with each other chemically and one is always trying to gain advantage over the other. Having a sufficient amount of Mg in the system is what keeps them together and helps maintain the balance.



Quote:
Originally Posted by dansemacabre
OK... I'm confused.
pH - 8.2
Ca - 350ppm (still Red Sea ... sorry)
Alk - 7.8dKH

what's with the crazy swing? I'm assuming I need to fix these before dripping the kalk? Ca should be at 450ppm and Alk should be 9-12dKH? If they must be fixed, should I get a Ca increaser and a Buffer? I don't want to screw up my animals.
Not sure what would cause the sudden drop unless the first test was either inacurrate or you tested immediately after dosing. No sign of white residue on the rocks and such?

You do not need to get the levels higher in order to use the kalk just balance the two. Although the Ca is low against the alk, you should still be fine using the kalk, you just might need to add a CaCl supp as well later on in the day. As far as dripping kalk 24/7, I wouldn't recommend it based on your current CaCO3 load. It doesn't need it. At most you will probabley need to drip 1-2 teaspoons worth 2x a week. Once you get more hard corals or crazy coralline growth it may need more.

Cheers
Steve
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Old 07-07-2004, 08:08 PM   #18
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Thanks, Steve.
I'm looking for a Salifert Mg test...tough to find right now. I've got some Kent Tech-M, I just need to see how much is in there.

No white residues anywhere. Just a bunch of black fuzz that appeared overnight...and a SPS-eating star making its way slowly towards my stylophora frag.

So I should buy a CaCl supplement, and do I need to buy anything for the Alk, or will the kalk help with that? Thanks again for everything!
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Old 07-07-2004, 08:12 PM   #19
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So I should buy a CaCl supplement, and do I need to buy anything for the Alk, or will the kalk help with that? Thanks again for everything!
Kalk raises both Ca and alaklinity equally. It is one of the best balanced additives you can use. If continuing with the kalk additions and depending on your results with the saltmix testing, Ca is probabley going to be the one you need in the long run. That's not to say you will never need a buffer, just not right now.

Cheers
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Old 07-07-2004, 09:46 PM   #20
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Thanks for all the help steve. I think this is my last question. The only Ball's they have at my local grocer that isn't a spice/seasoning/stuff-with-additives is called Ball's Pickle Crisp. It's 100% Calcium Chloride. Will this work for kalk, or do I need Calcium Hydroxide?
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