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Innovative Marine Aquariums

Calcium Level?


syaeger

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I'm confused about the calcium levels in my tank. I purchased Kent Tech CB, Part A & B, to raise the calcium level. The calcium level was 260 before dosing. I've been dosing 1/2 tsp (recommended dose) daily for the past four days. My calcium level has only risen to 280. At the rate I'm going, it will take forever to reach 400. Is this normal? Is the test kit I'm using a good brand (Hagen, Nutrafin)? Should I increase the daily dose? Would increasing the dose be safe for my livestock?

 

Tank Specs:

10 Gal

Aquatec 5-15 HOB Filter

Penguin 550 PH

50 W Ebo-Jager Heater

Coralife 96 W PC Quad Unit

10 lbs LR

Live Sand/DSB

 

Water Param:

Temp: 78F

SG: 1.023

PH: 8.2

AM: 0

NI: 0

NA: 0

CA: 280

 

Livestock:

1 Ocellaris Clownfish

1 Bicolor Pseudochromis

1 Cleaner Shrimp

1 Red-Spotted Star Fish

1 Red-leg Hermit

1 Blue-leg Hermit

8 Astrea Snails

2 Bumble Bee Snails

2 Emerald Crabs

Pipe Organ Coral

Devil's Hand Leather Coral

Red Mushroom Coral

Horn Coral

Button Polyps

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actually it should take a good amount of time as you already have livestock utilizing the ca you're adding. you're basically feeding the system and it's using some of the input for growth and bio-functions. if it was a bare system then you should top out fairly quickly.

 

not a big fan of the kent two-parter altho i use almost everything else they make. X)

 

just have patience and you'll reach an optimum ca level. the fact that you were able to discern a change within such a short time is actually pretty good. (4-days is really not a lot of time for something good to occur in. on the other hand, 4-minutes is just enough time for something bad to occur in)

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What is your magnesium and alkalinity values? If they are off it could and will impede calcium levels. Here is a small little tech thing I wrote that can help a bit: http://www.californiareefs.com/tanktechchemistry.htm

 

Tinyreef is on w/ it taking a while to raise. I've never used the A&B parts myself and have had better luck w/ Seachem stuff personally. Just give it some time and it'll raise if you alk and mag levels are ok.

 

Cameron

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Thanks for the info!

 

I started up my tank in June 2003. It took about three weeks to cycle. I started adding livestock the first week of July.

 

I don't have test kits for magnesium and alkalinity. What kits do you recommend? What suppliments do you recommend to adjust magnesium and alkalinity levels?

 

Tank Specs:

10 Gal

Aquatec 5-15 HOB Filter

Penguin 550 PH

50 W Ebo-Jager Heater

Coralife 96 W PC Quad Unit

10 lbs LR

Live Sand/DSB

 

Water Param:

Temp: 78F

SG: 1.023

PH: 8.2

AM: 0

NI: 0

NA: 0

CA: 280

 

Livestock:

1 Ocellaris Clownfish

1 Bicolor Pseudochromis

1 Cleaner Shrimp

1 Red-Spotted Star Fish

1 Red-leg Hermit

1 Blue-leg Hermit

8 Astrea Snails

2 Bumble Bee Snails

2 Emerald Crabs

Pipe Organ Coral

Devil's Hand Leather Coral

Red Mushroom Coral

Horn Coral

Button Polyps

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The two-part additives tweak Alkalinity and Calcium. The first part is usually the ALK supplement..the second is the Ca. My suggestion would be to increase the dose slightly everday until you reach the desired levels (3.0-4.0 meq/L of ALK and 450+ ppm of Ca). Testing for ALK and Ca as necessary of course. And while you do have a decent bioload..you also don't have any heavy calcifiers (the Hydnophora [horn coral] as a possible exception to that) that should be robbing your system of Ca at that rate...your main source of depletion right now is probably coraline algae...so push the dose up a bit and go to town.

 

HTH..

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