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live rock

This is a discussion on live rock within the Beginner Saltwater Aquariums forums, part of the Saltwater Fish and Coral Reef Tanks category; --> I converted my 33 gal tank from tropical to salt 1 1/2 weeks ago. I put in two live rocks aprox 15lbs. which were ...

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Old 09-26-2008, 10:50 AM   #1
 
live rock

I converted my 33 gal tank from tropical to salt 1 1/2 weeks ago. I put in two live rocks aprox 15lbs. which were cured and looked very healthy. I tested my water everything is fine. Then i added two more rocks in yesterday plus 1 hermit crab and another power head. And my question is why are the rocks going white? Should I get a skimmer?
I was told a skimmer isn't necessary at first.
I leave my light ( which is a 50/50 florcesent) on about 6 hrs.
Could there be something else going in the tank?
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Old 09-27-2008, 06:13 PM   #2
 
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It is common for Coralline algae that has been exposed to air for any length of time, to die off. The Coralline turns white and, over time, new Coralline will grow over top the old. Your concern now is to keep the water levels in check and ensure that conditions are optimal for coralline growth. Phosphates inhibit coralline growth, so makesure to keep phosphate levels at 0. Pay attention to your Calcium and Alkalinity levels as Coralline requires adequate levels of both for successful growth.

6 hours is not a lot of time for Lighting. You may want to up that a bit.

A skimmer isn't an immediate necessity, especially through the cycle process, But it is recommended, and will be a necessity before you begin to add livestock.
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Old 09-28-2008, 09:23 AM   #3
 
thanks for the help.
But now you have me questioning the calcuim level and the PH. What is the proper reading on both? I never knew I had to test for calcuim. (my bad). From the looks of things I still have a lot to learn.
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Old 10-19-2008, 10:40 PM   #4
 
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Don't feel bad even the expers are still learing. Ph should be about 7.9-8.2 and calcium should be about 350-450. what kind of coral do you have(if you have any)?
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Old 10-19-2008, 10:42 PM   #5
 
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Sorry should have read all first and not just the last post i know. you have no corals and it's a new tank.
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Old 10-19-2008, 10:44 PM   #6
 
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i highly highly recommend alot more research before moving forward.
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Old 10-20-2008, 08:53 AM   #7
 
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Ideal Parameters

Temp - 78f-82f
Ph - 8.2-8.4
SG - 1.0264 (or 35ppt)
Ammonia - 0 ppm
Nitrite - 0 ppm
Nitrate - < 05 ppm
Phosphate - 0 ppm
Calcium - 400-500 ppm
Alkalinity - 8-12 dkh
Magnesium - 1285 ppm

Last edited by SKAustin; 10-23-2008 at 08:39 AM.. Reason: changed to indicate new temp recommendations
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