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	<title>&#8235;Worldreefs.info - Roiy's Reef&#8236;</title> 	<link>http://worldreefs.info</link>
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		<title>&#8235;Lighting: Metal Halide Ballasts&#8236;</title> 		<description><![CDATA[&#8235;Metal Halide Ballasts

Like other discharge light sources, high-intensity discharge (HID) metal halide lamps require a ballast to limit current to the electrodes. Ballasts also provide the correct voltage for starting and restarting, and they adjust current to maintain light color and intensity over time. All ballasts suffer internal losses—ranging from 5 to 90 percent of [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/09/26/lighting-metal-halide-ballasts/</link>
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		<title>&#8235;What is Brown or Golden Algae?&#8236;</title> 		<description><![CDATA[&#8235;Referred to as a microalgae, brown or golden algae is actually not an algae at all, but diatoms. What you are actually seeing in your tank are diatom skeletons, all linked together. It can appear as a simple dusting on the tank walls and substrate surfaces, or it can turn into a massive growth that [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/09/16/what-is-brown-or-golden-algae/</link>
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		<title>&#8235;What is Color Rendering Index &#8211; CRI ?&#8236;</title> 		<description><![CDATA[&#8235;What is Color Rendering Index &#8211; CRI
Color rendering describes how a light source makes                            the color of an object appear to human eyes and how    [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/09/10/what-is-color-rendering-index-cri/</link>
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		<title>&#8235;New Reef Pictures &#8211; תמונות חדשות 08.08.2009&#8236;</title> 		<description><![CDATA[&#8235;תמונות שצולמו בתאריך 08.08.2009 בדיוק ביום שבו עברו שלושה חודשים מרגע הקמתו של האקוריום.
התמונות צולמו על ידי ועל ידי חיים Oz (תודה ילד) תהנו  
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		<title>&#8235;Amino Acids And Their Benefit In A Reef Tank&#8236;</title> 		<description><![CDATA[&#8235;Amino Acids And Their Benefit In A Reef Tank 
Written by Richard Gilliland Thursday, 19 March 2009 19:13

Amino Acids are quickly becoming one of the most popular additives to any serious reef keeper’s arsenal. There are many different reasons why they are being used and many why I suggest everyone should use them.  Many vitamins [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/08/02/amino-acids-and-their-benefit-in-a-reef-tank/</link>
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		<title>&#8235;Alkalinity &#8211; What Is It and How Is It Controlled&#8236;</title> 		<description><![CDATA[&#8235;Alkalinity &#8211; What Is It and How Is It Controlled 
Written by John Cunningham  Thursday, 19 March 2009 09:14

This is not a complete scientific discussion or description of alkalinity. It is simply intended as a base, as there isn’t a requirement for an aquarist to be a scientist and understand all. A basic understanding [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/08/02/alkalinity-what-is-it-and-how-is-it-controlled/</link>
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		<title>&#8235;Natural Seawater &#8211; Is It Recommended&#8236;</title> 		<description><![CDATA[&#8235;Natural Seawater &#8211; Is It Recommended
Written by John Cunningham
Thursday, 19 March 2009 08:53
Mother Nature provides the habitat for the livestock that we aquarists keep in our fish only aquariums or reef aquariums, and this, of course, is the wild reef. Mother Nature is also the provider of the other obvious essential, and that is seawater.
Having [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/08/02/natural-seawater-is-it-recommended/</link>
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		<title>&#8235;How To Maintain Calcium Levels&#8236;</title> 		<description><![CDATA[&#8235;














How To Maintain Calcium Levels



Written by Peter Cunningham 


Wednesday, 18 March 2009 19:20






Wednesday, 18 March 2009 19:20


Calcium is a building block on the reef and is essential. Many corals, invertebrates etc depend on it.
Let’s discuss parameters first, then look at how calcium can be provided.
It is generally accepted that in a home marine reef aquarium [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/08/02/how-to-maintain-calcium-levels/</link>
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		<title>&#8235;Aquarium Lighting, Wattage, Kelvin, and Nanometers&#8236;</title> 		<description><![CDATA[&#8235;AQUARIUM LIGHTING

When choosing lighting for your aquarium (especially reef or Nano reef), there is much more to consider than watts per gallon. The 3-4 watts per gallon for a Nano reef or freshwater plant aquarium, less for fish, more for hard coral; is a start but that is very general. There are other factors effecting [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/07/22/aquarium-lighting-wattage-kelvin-and-nanometers/</link>
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		<title>&#8235;The Importance Of Calcium &#8211; Magnesium &#8211; And Kh In Aquariums&#8236;</title> 		<description><![CDATA[&#8235;
The Importance Of Calcium &#8211; Magnesium &#8211; And Kh In Aquariums
Many aquarists overlook the need for calcium, electrolytes, magnesium and the effect of a proper KH (Carbonate hardness) in their freshwater aquarium. KH is basically the buffering capacity of your aquarium, a Kh above 80 ppm helps prevent sudden drops in ph (You can convert [...]&#8236;]]></description> 		<link>http://worldreefs.info/index.php/2009/07/22/the-importance-of-calcium-magnesium-and-kh-in-aquariums/</link>
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