API test kit issue - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 01-31-2018, 02:43 PM Thread Starter
Planted Member
 
PTrader: (0/0%)
Join Date: Jan 2018
Location: OHIO
Posts: 182
API test kit issue

Anyone else use this API master test kit and notice that the 10ppm nitrate and 20ppm nitrate colors are indistinguishable from each other? Or is it maybe just a misprint on my kit?

LOL... It's not much help
Attached Thumbnails
Click image for larger version

Name:	031E546B-B84F-42C8-B4DD-A381D090AB3A_1517413383048.jpg
Views:	9
Size:	41.0 KB
ID:	824610  

jaz419 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 01-31-2018, 02:53 PM
Planted Tank Enthusiast
 
PTrader: (0/0%)
Join Date: Dec 2017
Posts: 831
You're not alone here. I hate the nitrate color chart. As long as my samples read a true orange,I feel like I'm in the ideal range. Once it gets to be orangy-red, I do a 50% water change. Not very scientific, I know.
madcrafted is offline  
post #3 of 5 (permalink) Old 01-31-2018, 03:46 PM
Planted Tank Enthusiast
 
tamsin's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2011
Location: UK
Posts: 921
Quote:
Originally Posted by madcrafted View Post
You're not alone here. I hate the nitrate color chart. As long as my samples read a true orange,I feel like I'm in the ideal range. Once it gets to be orangy-red, I do a 50% water change. Not very scientific, I know.
^This, I aim for orange or less, rather than trying to work out an exact value.

If you do want to be more accurate. You can try diluting your test water. For example if you get orange with your tank water, retest with 50% tank and 50% RO (which will cut your nitrate by half as non in RO). If your original nitrate was 20ppm it will retest as orange (10ppm), if it was originally 10ppm it should retest as yellow (5ppm). Also handy for distinguishing between shades of red or working out how much water you need to change.
tamsin is offline  
 
post #4 of 5 (permalink) Old 01-31-2018, 04:02 PM Thread Starter
Planted Member
 
PTrader: (0/0%)
Join Date: Jan 2018
Location: OHIO
Posts: 182
Quote:
Originally Posted by tamsin View Post
Quote:
Originally Posted by madcrafted View Post
You're not alone here. I hate the nitrate color chart. As long as my samples read a true orange,I feel like I'm in the ideal range. Once it gets to be orangy-red, I do a 50% water change. Not very scientific, I know.
^This, I aim for orange or less, rather than trying to work out an exact value.

If you do want to be more accurate. You can try diluting your test water. For example if you get orange with your tank water, retest with 50% tank and 50% RO (which will cut your nitrate by half as non in RO). If your original nitrate was 20ppm it will retest as orange (10ppm), if it was originally 10ppm it should retest as yellow (5ppm). Also handy for distinguishing between shades of red or working out how much water you need to change.
Good idea, thanks!
jaz419 is offline  
post #5 of 5 (permalink) Old 01-31-2018, 10:08 PM
Planted Tank Guru
 
Maryland Guppy's Avatar
 
PTrader: (15/100%)
Join Date: Dec 2014
Location: Arnold
Posts: 3,684
Traffic light approach is best.

Yellow = add KNO3
Orange = All is Good
Red = WC time


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Growing is not that difficult.
Maryland Guppy 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