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Old 11-11-2012, 10:54 AM   #1
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Switching to kalk

2 part was starting to get little expensive so i got a little tub of kalk. Im not exactly sure how to use it though since i dont have an ATO. I dont know what concentration to start off with. Any help?
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Old 11-11-2012, 11:29 AM   #2
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BRS has some pretty detailed info on starting Kalk: Kalkwasser Instructions - Instructions - Bulk Reef Supply
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Old 11-11-2012, 01:12 PM   #3
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Quote:
Originally Posted by TigerBarbs View Post
2 part was starting to get little expensive so i got a little tub of kalk. Im not exactly sure how to use it though since i dont have an ATO. I dont know what concentration to start off with. Any help?
Mix your own 2-part..... super cheap & very easy to do. I make a gallon of each for a total of about $2.00.....

An Improved Do-it-Yourself Two-Part Calcium and Alkalinity Supplement System by Randy Holmes-Farley - Reefkeeping.com
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Old 11-12-2012, 06:54 PM   #4
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Im going to try to use the kalk first if i can. And the brs article is good but its for using it with an auto top off unit. I just dont know what concentration to use and how much to drip in.
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Old 11-12-2012, 07:31 PM   #5
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Max concentration is 2 tablespoons per gallon of RO water. I would start small at .5-1 tablespoons and work up as needed. Lime (kalk) has a ph of about 14 so you have to monitor your ph while dosing. Mix a gallon or so, place the container above your tank & start a siphon into your system. Tie a few knots in the airline so you get a drip every 2-3 seconds or so (monitoring your ph).

When you mix it, let it stand for 30 mins & do not dose the milky stuff at the bottom. Only mix the clear liquid.

Monitor your ph & Alk/Calcium & adjust your concentration accordingly.
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Old 11-12-2012, 07:39 PM   #6
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Finally!!!! Straight forward instructions!! Lol thanks a lot!!!
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Old 11-14-2012, 06:13 PM   #7
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Feeling really dumb asking this question lol my ph is at 8.2 right now and my calcium is only at 380-390 so how can i raise my calc without my PH getting higher?
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Old 11-14-2012, 06:14 PM   #8
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If it helps at all, i cant really dose a whole gallon. I have no where to put the jug and i cant keep filling up a gatorade bottle 3 times a day
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Old 11-14-2012, 07:06 PM   #9
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It's tough to raise calcium a lot with lime because of the ph swing. A swing of .2 ph is safe though. If you want a larger boost, you can add vinegar to your RO water which helps keep the ph down and increases the maximum lime you can mix to about 3tbsp/gallon.

What's your Alk at?
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Old 11-14-2012, 07:08 PM   #10
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By the way, the ph rise is temporary. If you have a stable ph already your system will help buffer it back down to normal (after you stop dosing of course). This is why a small swing is ok (.2).
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