Adding calcium carbonate to freshwater aquarium. - The Planted Tank Forum
 1Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 06-12-2006, 06:35 PM Thread Starter
Guest
 
PTrader: (0/0%)
Join Date: Mar 2006
Posts: 38
Adding calcium carbonate to freshwater aquarium.

Just wondering, would it be reasonable to add strait Calcium carbonate to harden the water of a freshwater aquarium.

I did some research and I can only calcium carbonate in relation to salt water reef tanks. From what I under stand adding it to those tank may actuall decrease the hardness of the water, because some of the salts in the water would combine with the less desolbable Calcium Carbonate.

But i can't find any thing on if you can use it in a Freshwater tank to rise the DH? Can you?
crayfish is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 06-12-2006, 10:07 PM
Planted Tank Obsessed
 
livebearer's Avatar
 
PTrader: (24/100%)
Join Date: Jun 2006
Location: cleveland
Posts: 406
Talking

if im not wrong calcium carbonate is aragonite, and i have a 29 salt water tank that has it in there and i had a 10 gallon sw tank with it also but after 3 mos i turned it to freshwater and left the aragonite in there. i dont really know how to read water perameters but i do have a ph kit and my water is at 7.6 good for livebears i believe but my kit is a basic on and doesnt go to 8 so that may effect the readings also.

dont know if i was any help but i can tell you i have live bearers and rainbows and 1 goldfish 1 puffer 1tetra and 1 bumble be cat fish and all is well i also have plants that are doing fine to. tanks been freshwater for 2mos now.


oh yea i know tanks way to over stocked *trying to curb my compulsion buying*
livebearer is offline  
post #3 of 17 (permalink) Old 06-13-2006, 12:45 AM
Planted Tank Guru
 
Rex Grigg's Avatar
 
PTrader: (65/100%)
Join Date: Dec 2002
Location: Portland Orygun
Posts: 9,600
Calcium carbonate will raise both gH and kH. The drawback is it's almost insoluble.

If you want to just raise kH use baking soda. If you want to raise gH then use Calcium chloride and Epsom salts.

All this info is contained in my Guide.
Rex Grigg is offline  
 
post #4 of 17 (permalink) Old 06-13-2006, 07:46 AM
Planted Tank Guru
 
Betowess's Avatar
 
PTrader: (27/100%)
Join Date: Dec 2004
Location: Skagit County, Washington State
Posts: 3,199
Well, one can use crushed coral as a buffer to raise both GH (General Hardness) and KH (carbonate hardness) in a media bag in a canister filter. Many say it is too inaccurate, but it works for me. And the cost is nice at less than a dollar/lb.

And since I have zero GH in my tap water from a well (kind of a mountain underground spring) I add both calcium chloride and mg (epsom salts) like Rex suggested to raise the GH and baking soda to raise the KH. But one can't add them at the same time because a precipitate develops and the calcium chloride and Mg (Epsom salts) bond to make calcium sulfate which is very slow to dissolve. So I add them on separate days and it works fine. I also recommend reading Rex's valuble guide.





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
Betowess is offline  
post #5 of 17 (permalink) Old 06-16-2006, 04:22 PM Thread Starter
Guest
 
PTrader: (0/0%)
Join Date: Mar 2006
Posts: 38
Thanks!

One more thing though... where can you find calcium chloride? Is calcium chloride used as a De-icer?

Thanks again!
crayfish is offline  
post #6 of 17 (permalink) Old 06-16-2006, 07:03 PM
Planted Tank Guru
 
PTrader: (84/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,012
http://www.gregwatson.com/DryAquaticFertilizers.asp is the best place to buy almost every chemical used in a planted tank. Cheap, good service, and good products.

Hoppy
Hoppy is offline  
post #7 of 17 (permalink) Old 06-17-2006, 12:42 AM
Planted Tank Guru
 
Rex Grigg's Avatar
 
PTrader: (65/100%)
Join Date: Dec 2002
Location: Portland Orygun
Posts: 9,600
Calcium chloride is a common de-icer. But many of them also contain salt. So be aware of that. I have found some brands that are pure CaCl2.
Rex Grigg is offline  
post #8 of 17 (permalink) Old 06-17-2006, 04:15 PM
Planted Tank Guru
 
Betowess's Avatar
 
PTrader: (27/100%)
Join Date: Dec 2004
Location: Skagit County, Washington State
Posts: 3,199
There is a cheap calcium chloride product used for dehumidifiers that Lowes home stores sell called: Dri Z Air. The size is ~ 13 oz for about a dollar. Its 100% calcium chloride. No shipping charges for it if there's a Lowes near by.





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
Betowess is offline  
post #9 of 17 (permalink) Old 06-25-2006, 01:27 PM Thread Starter
Guest
 
PTrader: (0/0%)
Join Date: Mar 2006
Posts: 38
I just examined an unopened bag of de-icer that we have. It contains Sodium Chloride, Calcium Chloride, Magnesium Chloride, and Potassium Chloride. I know sodium, Calcium, and Magnesium are components in water hardening, and I am pretty sure Potassium is present in fertilizers. Would it be ok to use this?

Also is it any problem that they are all chlorides?

Thanks yet again for all your help!
crayfish is offline  
post #10 of 17 (permalink) Old 01-20-2018, 10:01 AM
Planted Member
 
PTrader: (0/0%)
Join Date: Jun 2017
Location: Tha Bean
Posts: 230
Quote:
Originally Posted by livebearer View Post
if im not wrong calcium carbonate is aragonite, and i have a 29 salt water tank that has it in there and i had a 10 gallon sw tank with it also but after 3 mos i turned it to freshwater and left the aragonite in there. i dont really know how to read water perameters but i do have a ph kit and my water is at 7.6 good for livebears i believe but my kit is a basic on and doesnt go to 8 so that may effect the readings also.

dont know if i was any help but i can tell you i have live bearers and rainbows and 1 goldfish 1 puffer 1tetra and 1 bumble be cat fish and all is well i also have plants that are doing fine to. tanks been freshwater for 2mos now.


oh yea i know tanks way to over stocked *trying to curb my compulsion buying*
No such thing as over-stocked.
Do as thou wilt.

Sent from my SM-G730V using Tapatalk
splattered is offline  
post #11 of 17 (permalink) Old 02-05-2018, 06:08 PM
Planted Member
 
PTrader: (0/0%)
Join Date: Jan 2018
Posts: 216
Quote:
Originally Posted by crayfish View Post
Thanks!

One more thing though... where can you find calcium chloride? Is calcium chloride used as a De-icer?

Thanks again!
Kent Marine Turbo Calcium is pure calcium chloride

Sent from my SM-G900V using Tapatalk
mboley is offline  
post #12 of 17 (permalink) Old 02-25-2018, 12:12 AM
Newbie
 
PTrader: (0/0%)
Join Date: Feb 2018
Location: australia
Posts: 1
i just tried an experiment where i got some seashells (calcium carbonate) and ground them down in a mortar and pestle,then i got some water out of my tank in a soda stream bottle and lowered the ph to below 6 added three ice cubes with the seashell dust and then put it in the soda stream, gassed it up, then shook it up till no bubbles left . i then readjusted ph to 7 and was able to controll kh with the liquid. A 5ml test tube i was able to increase kh from 71.6 to 161.1 with .1 ml calcium liquid. three things i have read to dissolve calcium carbonate is 1. temp. ( colder it is faster it desolves) 2.acidity helps break the bond of the calcium carbonate and lastly co2 carbon dioxide helps to break it down in nature . Put these three things together you can liquify it.. it worked for me
jeffy is offline  
post #13 of 17 (permalink) Old 02-25-2018, 11:36 PM
Moderator
 
Darkblade48's Avatar
 
PTrader: (3/100%)
Join Date: Jan 2008
Location: Toronto
Posts: 11,712
Quote:
Originally Posted by jeffy View Post
three things i have read to dissolve calcium carbonate is 1. temp. ( colder it is faster it desolves) 2.acidity helps break the bond of the calcium carbonate and lastly co2 carbon dioxide helps to break it down in nature . Put these three things together you can liquify it.. it worked for me
Hotter temperatures will aid in dissolution of substances, not colder temperatures.

Technically speaking, acidity (of which carbon dioxide is slightly) will push the calcium carbonate equilibrium to the right, which aids in dissolution. It is not really 'breaking the bond' as you have put it.

Anthony


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
and
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
post #14 of 17 (permalink) Old 09-13-2018, 11:56 PM
Planted Member
 
PTrader: (4/100%)
Join Date: Aug 2018
Posts: 208
Does the Greg Watson guy still sell things? The link doesn't work anymore. Thanks!
Pwilly07 is offline  
post #15 of 17 (permalink) Old 09-14-2018, 02:17 AM
Planted Tank Guru
 
Seattle_Aquarist's Avatar
 
PTrader: (65/100%)
Join Date: Jun 2008
Location: Seattle, WA
Posts: 6,620
Hi @Pwilly07,

I believe that Greg Watson sold aquariumfertilizer.com in 2007 to Alan Kaufmann, currently Julia Adkins is running the business. I still purchase most of my fertilizers there, especially CSM+B. Why? Because Plantex CSM does not contain the boron (B), it has to be added (hopefully) by the seller and aquariumfertilizer.com knows how much to add from the original formulas by Greg Watson.
Pwilly07 likes this.

Roy_________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

75 Gallon, 2X55W AH Supply CF 8800K, 1X 59W Fluval Plant (3.0); 45 Gallon Tall, 1X 46W Fluval Plant (3.0); 30 Gallon Long; Fluval F&P 2.0; 20 Gallon, 1X26W AH Supply LED; all with CO2 & (Calcined) Montmorillonite Clay
Seattle_Aquarist is online now  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome