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Old 04-24-2009, 12:45 AM   #1
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Lightbulb DIY Calcium and Alk Supp

has anyone ever heard of this? does it work? good points or bad ones? found it when serfing the internet. An Improved Do-it-Yourself Two-Part Calcium and Alkalinity Supplement System by Randy Holmes-Farley - Reefkeeping.com is the link.

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Old 04-24-2009, 09:38 AM   #2
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Works great. I've been making and using it for a few yerars.
You can buy Arm & Hammer baking soda anywhere.
If you only occasionally need to supplement, you can use QuikJoe IceMelt, Prestone Drivewat Heat, Peladow or DowFlake for calcium. If you need to dose everyday, you should get the calcium from www.bulkreefsupply.com.
If you only need to slightly boost mag, you can use EpsonSalt. If you need to supplement mag regularly, you should use EpsonSalt mixed with magnesium chloride hexahydrate from bulk reef supply.
Just follow the article for mixing and use the reef chemistry calculator to figure out how much to use.

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Old 04-24-2009, 11:25 AM   #3
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Have you tried PWC`s to see if that will help your numbers? I know some salt mixes wont but some do. What are your calcium and alk number right now?


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calcium, diy

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