Water Parameters material balance - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 08-07-2009, 02:30 AM Thread Starter
Planted Tank Enthusiast
 
houstonhobby's Avatar
 
PTrader: (3/100%)
Join Date: Dec 2008
Location: Houston
Posts: 612
Water Parameters material balance

My 55 cube parameters, as of this evening, are:

pH - About neutral I think.
CO2 - 20-30 ppm - drop checker is green with a bluish tinge.
GH - 8 degrees, implying about 140 ppm
KH - 5 degrees, implying about 83 ppm
TDS - 218 ppm.

What should I make of this? First of all, I've got a total of 223 ppm just in GH and KH. The CO2 puts me up to around 250-260. Plus I had put in 5 ml of PPS Pro solution just before measuring so I know there are some other things in there. I know the GH and KH measurements have a margin of error of at least 17 ppm each. Poor lab technique could account for more.

Anyway, my checkbook is not balancing here.

Another observation, I have been putting nothing but RO water at 7 ppm into this tank for months. There is a heck of a GH and KH buffer in there somewhere. The substrate is EcoComplete with some Lowe's play sand, some commercial gravel that is probably inert, and one large piece of gray slate. I suspect that the EcoComplete is supplying the buffer. Not complaining. Just saying.


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.
houstonhobby 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