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Old 02-07-2010, 03:54 PM   #1 (permalink)
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Default Hardening Water

Does anyone have any ideas of how to safely harden freshwater? I need to emulate a limestone cave environment. I have tried calcium carbonate powder but it didn't have much effect. Thanks for any help.
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Old 02-09-2010, 09:03 PM   #2 (permalink)
ML
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Default Re: Hardening Water

ill sell you some of my well water. i live on an iron range so my water is almost magnetic....
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Old 02-10-2010, 07:23 AM   #3 (permalink)
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Default Re: Hardening Water

Some Tuffa rock might help
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Old 02-10-2010, 09:44 PM   #4 (permalink)
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Default Re: Hardening Water

Quote:
Originally Posted by CraigH View Post
Does anyone have any ideas of how to safely harden freshwater? I need to emulate a limestone cave environment. I have tried calcium carbonate powder but it didn't have much effect. Thanks for any help.
I would use baking soda for kh and epson salts for gh. But be careful it doesn't take much.

Also calcium chloride raises gh also by adding calcium instead of magnesium from epsom salts. I think small quanties are sold at pool supply places as "shock". Otherwise calcium chloride is sold in 50 pounds bags ($20 or so) at redimix concrete places. Actually cal chlor in 25 pound bags was $8 at one redimix place.

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fw leiden since 1979, fo salt since 1979, mixed reef 55g 2002-2009. Strong emphasis on the tank taking care of itself. Balanced with plant life, no water changes, tap water, no filters in FW. Only dosing calcium, alk, mag in marine reef tanks. http://www.aquariumforum.com/f15/my-...ods-26410.html
recent tanks (till 2009) 7 years- 10g FW leiden 7 yrs, 55g mixed reef 7, 2 yrs, 20g FW leiden, 10 g fw leiden , 29g mixed reef, current tank 55g leiden
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Old 02-11-2010, 12:16 PM   #5 (permalink)
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Default Re: Hardening Water

Crushed Coral might work.
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Old 02-11-2010, 09:08 PM   #6 (permalink)
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Default Re: Hardening Water

Limewater (Calcium hydroxide dissolved in water)
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