KH too high

livemontana · 02/01/2007, 11:01 AM

I recently overdosed on kalkwasser. Even after several water changes then the alkanity/KH measures are:

16.82 dhk
290 ppm calcium carbonate equivalents

How hazardous is this level for fish and/or invertabrates?

Thanks!

Randy Holmes-Farley · 02/01/2007, 01:59 PM

I'd follow the directions in this article and calculator to boos calcium with calcium chloride, and let the alkalinity decline on its own. No need for a water change.

Do you know the pH now?

Solving Calcium and Alkalinity Problems
http://www.advancedaquarist.com/issues/nov2002/chem.htm

Reef Chemicals Calculator
http://home.comcast.net/~jdieck1/chem_calc3.html

These may also help:

What is that Precipitate in My Reef Aquarium?
http://reefkeeping.com/issues/2005-07/rhf/index.htm

What Your Grandmother Never Told You About Lime
http://reefkeeping.com/issues/2005-01/rhf/index.htm

livemontana · 02/01/2007, 02:41 PM

Hi Randy

First thank you for help! Your always posting answers to everyone's questions and the best part is you know what your actually talking about

Anyways I am really glad that a kind and smark person such as yourself is an active participant on this board.

My PH is currently 7.80 My calcium is 500 ppm. If it drops under 400 before my KH returns to normal then I'll add some calcium chloride. I'm gonna use baked baking soda to raise my PH if it drops much below where its at.

Otherwise I'll just let the KH drop on its own as you suggested. I just wanted to make sure a level that high wasn't damaging to things. Thanks again!

Jer

02/01/2007, 11:01 AM	#1
livemontana Premium Member Join Date: Sep 2006 Posts: 65	KH too high I recently overdosed on kalkwasser. Even after several water changes then the alkanity/KH measures are: 16.82 dhk 290 ppm calcium carbonate equivalents How hazardous is this level for fish and/or invertabrates? Thanks!

02/01/2007, 01:59 PM	#2
Randy Holmes-Farley Reef Chemist Join Date: Apr 2001 Location: Arlington, Massachusetts Posts: 86,233	I'd follow the directions in this article and calculator to boos calcium with calcium chloride, and let the alkalinity decline on its own. No need for a water change. Do you know the pH now? Solving Calcium and Alkalinity Problems http://www.advancedaquarist.com/issues/nov2002/chem.htm Reef Chemicals Calculator http://home.comcast.net/~jdieck1/chem_calc3.html These may also help: What is that Precipitate in My Reef Aquarium? http://reefkeeping.com/issues/2005-07/rhf/index.htm What Your Grandmother Never Told You About Lime http://reefkeeping.com/issues/2005-01/rhf/index.htm __________________ Randy Holmes-Farley Current Tank Info: 120 mixed reef

02/01/2007, 02:41 PM	#3
livemontana Premium Member Join Date: Sep 2006 Posts: 65	Hi Randy First thank you for help! Your always posting answers to everyone's questions and the best part is you know what your actually talking about Anyways I am really glad that a kind and smark person such as yourself is an active participant on this board. My PH is currently 7.80 My calcium is 500 ppm. If it drops under 400 before my KH returns to normal then I'll add some calcium chloride. I'm gonna use baked baking soda to raise my PH if it drops much below where its at. Otherwise I'll just let the KH drop on its own as you suggested. I just wanted to make sure a level that high wasn't damaging to things. Thanks again! Jer