Previously Asked Questions

• by Alejandro on May 18, 2013, @6:23 AM

  Hello, I saw the vídeos, but Im still not clear on how much water I need to add? , to the mix of 5 cups of mag chl. And 3 cups of mag sulf.
  
  Does the water need to be hot in order to dissolve the product?
  
  Thank you

  Bulk Reef Supply Hey Alejandro,
  If you are mixing up two part that is exactly what you would do for the magnesium solution. The water can be room temperature, it does not have to be hot.

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• by Jacob on April 8, 2013, @4:51 PM

  what is the difference between the magnesium chloride and the magnesium sulfate?

  Bulk Reef Supply Hey Jacob,
  They are chemically different. For an aquarium you want to use a combination of both. If you use two part you want to mix 5cup magnesium chloride and 3 cups of magnesium sulfate in 1 gallon of water. If you don't use two part then it would be 7.25 cups magnesium chloride and .75cups magnesium sulfate in 1g of water.
  
  This helps keep the chloride to sulfate ratio as close to natural seawater as possible without resulting in a buildup of chloride or sulfate.

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• by Gene on February 6, 2013, @9:37 AM

  How much does a 1/2 gallon of the two part mix make of the magnesium?

  Bulk Reef Supply Hey Gene,
  For the two part recipe 1 gallon of magnesium solution calls for 5 cups of magnesium chloride and 3 cups of magnesium sulfate. 1/2 gallon of magnesium chloride is 8 cups, so the 1/2g container would be enough for 1 gallon of magnesium solution with about 3 cups leftover.

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• by Brian on January 4, 2013, @8:57 AM

  I saw on one of the videos, that if using Kalkwasser to use far less Magnesium Salfate. Is this still a good practice to do and if so why? Just courious why so much less Salfate when using Kalk. According to most everything I read, Mg should be a faily stable element and need rarely adjusted, yet I'm always chasing it to 1300ish. So I'm wondering it its because of the reduced Salfate addition. I may switch to 2 part in time, I've always had good luck with Kalk in the past.
  
  Thanks and keep up the good work
  Brian

  Bulk Reef Supply Hey Brian,
  Great question, a lot of people get confused by this.
  
  It is correct that you would use less magnesium sulfate when using kalk or a calcium reactor compared to two part. You would want to mix a gallon of solution at a ratio of 7.25 cups magnesium chloride to .75 cups of magnesium sulfate.
  
  What you are trying to do here is keep the sulfate to chloride ratio as close as you can to natural seawater. When using two part you are dosing calcium chloride, which increases the ratio of chloride in the tank. So on the magnesium recipe for two part you increase the amount of sulfate to offset that, so you use 5 cup of magnesium chloride and 3 cups of magnesium sulfate.

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