KH 12, pH 7.6+, CO2 ~9- ok? - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 06-30-2008, 08:28 PM Thread Starter
Planted Member
Ishar's Avatar
PTrader: (0/0%)
Join Date: Oct 2007
Location: Waterloo, ON
Posts: 172
KH 12, pH 7.6+, CO2 ~9- ok?

How does that sound? My pH is really high- 7.6 or higher, and my KH is high too- 12 degrees. Using some online calculators and stuff I have found my water to have barely over 9ppm CO2. I am running *just* under one bubble per second. Should I up the bubble rate? I am using a HOB filter as well, so I am afraid of adding a lot of CO2 and just having it outgassed. Any suggestions?
Ishar is offline  
Sponsored Links
post #2 of 2 (permalink) Old 06-30-2008, 08:47 PM
Wannabe Guru
ColeMan's Avatar
PTrader: (14/100%)
Join Date: Mar 2008
Location: Tulsa, OK
Posts: 1,739
The CO2 chart is less than perfect. You're going to want to up your CO2 (you're target should be around 30-35 ppm, depending on what you're trying to do; some will run higher levels when trying to kill algae); my suggestion would be getting a drop checker to dial in your CO2 levels.

Let me ask you this: what's the KH of your tap water? If you're KH increases in the tank, something's adding carbonate (rocks or some part of your hardscape or filter media) - Co2 is added to the water lowering the pH and->making the water more acidic -> which means more minerals are dissolved into the water, which means-> the KH increases, which means -> the pH increases. Just a thought...
ColeMan is offline  


Quick Reply

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


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

Email Address:


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