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Old 12-16-2004, 10:05 PM   #1
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cal & alk ratios

My Cal is at 450 and my alk is at 4.75 mequ/l. Is this a good balance?
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Alex n Mary

150 gallon, 30g fuge/sump, 4.5 watt/gal VHO Lighting, 4" sand bed, 290 lbs LR, CDX-3 Nitrate/Phosphate filter

Female Naso "Isabell" or "Izzy", Emperor Angelfish, Flame Angel, Red Sea Sailfin tang "Bambi", Maroon Clown "Nani", 5 Chromis, 1 Aglae Blenny "Bengi" , Yellow Watchman Goby, pr of Banggai Cardinals, Lyretail Anthia, Six Line Wrasse

1 cleaner shrimp, Coral Banded Shrimp, lettuce nudibranch, 1 sand sifter stars, 1 tiny red brittle star "red", 1 tiny red and white banded serpent star, 2 tiny banded serpent stars, small orange Linkia starfish, assorted hermits and snails. Corals: star polyps, A ton of different types of mushrooms, yellow zooanthids, brown-orangish and light blue paly's, orange ricordia.

90g RR, W/D, 120 lb's LR SF eel, pygmy angel, pr sebae clownfish, 4 chromis. Star Polyps & Mushrooms
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Old 12-16-2004, 10:49 PM   #2
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The balance is good but the levels are on the higher than needed side. There is no benefit to having the chem higher than NSW but resonable to keep it at the high side of NSW. If keeping primarily scleractinians high levels may promote a slightly faster growth/depositing of CaCO3 but in doing so it also creates rather brittle and often reedy skelatal structures.

Personally I would let them drop some. Max 420 ppm Ca and 2.8-3 mEq/l alk.

Cheers
Steve
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Old 12-17-2004, 12:08 AM   #3
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Thats the thing, my alk is always high, I don't understand why. Even if the cal is on the lower side (like 350).
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Alex n Mary

150 gallon, 30g fuge/sump, 4.5 watt/gal VHO Lighting, 4" sand bed, 290 lbs LR, CDX-3 Nitrate/Phosphate filter

Female Naso "Isabell" or "Izzy", Emperor Angelfish, Flame Angel, Red Sea Sailfin tang "Bambi", Maroon Clown "Nani", 5 Chromis, 1 Aglae Blenny "Bengi" , Yellow Watchman Goby, pr of Banggai Cardinals, Lyretail Anthia, Six Line Wrasse

1 cleaner shrimp, Coral Banded Shrimp, lettuce nudibranch, 1 sand sifter stars, 1 tiny red brittle star "red", 1 tiny red and white banded serpent star, 2 tiny banded serpent stars, small orange Linkia starfish, assorted hermits and snails. Corals: star polyps, A ton of different types of mushrooms, yellow zooanthids, brown-orangish and light blue paly's, orange ricordia.

90g RR, W/D, 120 lb's LR SF eel, pygmy angel, pr sebae clownfish, 4 chromis. Star Polyps & Mushrooms
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Old 12-17-2004, 07:43 AM   #4
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Quote:
Originally Posted by clowninround
Thats the thing, my alk is always high, I don't understand why. Even if the cal is on the lower side (like 350).
I know that these to are related, but would someone mind explaining how or why? Thanks.
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Old 12-17-2004, 11:38 AM   #5
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Quote:
Originally Posted by clowninround
my alk is always high, I don't understand why. Even if the cal is on the lower side (like 350).
There are many reasons. The most common is the saltmix itself (IO usually), if unbalanced and not corrected before use it will affect the chem in the main tank from small to large swings depending on the amount of water swapped out. It can have a "building" effect over time as well if only doing smaller water changes.

Chem additions will also cause drops/imbalances due to CaCO3 precipitate, mild abiotic precip, large doses of either element, improper testing, etc etc...

The only way to help figure that out is post your routine as well as how you test and how often, what scleractinians are in the tank if any and what salt is being used and how often it's changed/how much.

Cheers
Steve
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Old 12-17-2004, 11:39 AM   #6
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Quote:
Originally Posted by Heineken
Quote:
Originally Posted by clowninround
Thats the thing, my alk is always high, I don't understand why. Even if the cal is on the lower side (like 350).
I know that these to are related, but would someone mind explaining how or why? Thanks.
http://reefkeeping.com/issues/2002-0...ture/index.htm

Cheers
Steve
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Old 12-17-2004, 04:18 PM   #7
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I am doing my first w/c with Oceanic tommorrow. Been using IO, with 15% w/c every 2-3 weeks. Will this help? I planned to do the same routine with the new salt.
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Alex n Mary

150 gallon, 30g fuge/sump, 4.5 watt/gal VHO Lighting, 4" sand bed, 290 lbs LR, CDX-3 Nitrate/Phosphate filter

Female Naso "Isabell" or "Izzy", Emperor Angelfish, Flame Angel, Red Sea Sailfin tang "Bambi", Maroon Clown "Nani", 5 Chromis, 1 Aglae Blenny "Bengi" , Yellow Watchman Goby, pr of Banggai Cardinals, Lyretail Anthia, Six Line Wrasse

1 cleaner shrimp, Coral Banded Shrimp, lettuce nudibranch, 1 sand sifter stars, 1 tiny red brittle star "red", 1 tiny red and white banded serpent star, 2 tiny banded serpent stars, small orange Linkia starfish, assorted hermits and snails. Corals: star polyps, A ton of different types of mushrooms, yellow zooanthids, brown-orangish and light blue paly's, orange ricordia.

90g RR, W/D, 120 lb's LR SF eel, pygmy angel, pr sebae clownfish, 4 chromis. Star Polyps & Mushrooms
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Old 12-17-2004, 07:37 PM   #8
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Be very careful when you change over to a new salt. In this case IO has a high alk low Ca with a med-normal pH. The Oceanic is a low alk high Ca with a normal to low pH. You may end up exchanging one problem for another but in any case, please be absolutley sure you do this slowly.

Instead of the 15% every 2-3 weeks I would suggest 5% weekly for the next 6-8 weeks. This will, allow the more sensitive inverts and fish to acclimate better. Too fast a switch can cause serious health issues for many coral species. After that simpley increase the amount changed until back to your normal routine.

FWIW, dosing CaCl would have been an easier route than switching salts. Unless I'm mistaken, it doesn't sound like you have many scleractinians(3?).

Cheers
Steve
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Old 12-17-2004, 08:00 PM   #9
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O man, I talked to you before and I thought you were saying that IO was bad. Thats why I was switching. Oceanic here is more expensive than IO, but I thought I would not need to dose as much using Oceanic. I just really want a balanced tank...I hate dosing because of the risk of doing something wrong. Ca is all I dose. Should I stay with IO? I don't know what I'd do with the salt b/c I bought a 90gallon bucket...but if I were to change my mind, now would be the time since I haven't used it yet.
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Alex n Mary

150 gallon, 30g fuge/sump, 4.5 watt/gal VHO Lighting, 4" sand bed, 290 lbs LR, CDX-3 Nitrate/Phosphate filter

Female Naso "Isabell" or "Izzy", Emperor Angelfish, Flame Angel, Red Sea Sailfin tang "Bambi", Maroon Clown "Nani", 5 Chromis, 1 Aglae Blenny "Bengi" , Yellow Watchman Goby, pr of Banggai Cardinals, Lyretail Anthia, Six Line Wrasse

1 cleaner shrimp, Coral Banded Shrimp, lettuce nudibranch, 1 sand sifter stars, 1 tiny red brittle star "red", 1 tiny red and white banded serpent star, 2 tiny banded serpent stars, small orange Linkia starfish, assorted hermits and snails. Corals: star polyps, A ton of different types of mushrooms, yellow zooanthids, brown-orangish and light blue paly's, orange ricordia.

90g RR, W/D, 120 lb's LR SF eel, pygmy angel, pr sebae clownfish, 4 chromis. Star Polyps & Mushrooms
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Old 12-17-2004, 09:32 PM   #10
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I would never have said IO was bad rather I would have said it would not be my choice. I did not know you where going to switch salts, had I known that I would not have recommended Oceanic. IMO, it's just the reverse of IO and not a very good reef salt. IO would be okay for most FO and FOWLR, I'm still undecided on what to say about Oceanic though other than, why....

I am truely sorry if something I said lead you towards Oceanic, it would never be a recommendation I would offer. If you want a recommendation, I would opt for either Tropic Marine or my prefered brand, Kent Marine.

Cheers
Steve
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