pH too low!? HELP - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 03-20-2006, 10:10 PM Thread Starter
Planted Member
 
sunkyokim's Avatar
 
PTrader: (11/100%)
Join Date: Mar 2006
Location: los angeles, ca
Posts: 175
pH too low!? HELP

My pH controller read my pH to be 6.1. The only thing i did different since yesterday was put in new driftwood and started injecting some co2 from a pressurized canister this morning. The pH test kit reads 7.3 but the pH controller reads 6.2. What do you think is going on? i just recalibrated the pH controller twice and things seem to be working fine. I really need help! The water is around 84 degrees... what do i do to make it go back up and normalize it? water change perhaps?
sunkyokim is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 03-20-2006, 10:17 PM
Wannabe Guru
 
yoink's Avatar
 
PTrader: (69/100%)
Join Date: Apr 2005
Location: Indiana
Posts: 1,981
Putting in driftwood can lower your ph. Injecting co2 will lower your ph. What is your kh? How are your animals reacting to the new ph? What was your ph before the driftwood and co2?
yoink is offline  
post #3 of 5 (permalink) Old 03-20-2006, 10:28 PM
Planted Tank Guru
 
PTrader: (84/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,012
If the test kit reads 7.3 and the controller reads 6.1, one has to be wrong. The problems with test kits are in judging the color of the sample versus the little color chart, but 7.3 looks much, much different from 6.1. So, I doubt that the controller is reading correctly. I don't use one, but I know you have to do a two point calibration for it to be accurate. That would mean having a test solution with PH=7.0 and one with PH=6.0 or 5.0. If you only have the 7.0 solution that could be the problem. In any case even 6.1 isn't a low enough reading for panic. If the fish are all at the top of the tank gulping air, you have too much CO2. The fix for that is to reduce or stop adding CO2 until the fish act normally. If the fish act normally you don't have too much CO2.

Hoppy
Hoppy is offline  
 
post #4 of 5 (permalink) Old 03-20-2006, 11:21 PM
Ibn
Planted Tank VIP
 
Ibn's Avatar
 
PTrader: (9/100%)
Join Date: Nov 2003
Location: San Jose, CA
Posts: 3,212
Like what the others have said, what is your KH value at and how are your fish behaving? If they're doing fine, then I wouldn't worry too much about it. I'm currently running the tank at pH 5.8.

Eric


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.
Ibn is offline  
post #5 of 5 (permalink) Old 03-20-2006, 11:24 PM
Wannabe Guru
 
ianiwane's Avatar
 
PTrader: (48/100%)
Join Date: Sep 2004
Location: San Francisco (mainland transplant from Hawaii)
Posts: 1,464
I agree a pH of 6.1 may not be bad at all depending on you kH. Like Eric I am running my tanks at lower pH's.


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.


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.
ianiwane is offline  
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