Need assistance modifying Salifert Potassium test to lower PPM - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 05-06-2019, 11:07 PM Thread Starter
Planted Member
 
PTrader: (0/0%)
Join Date: Jan 2019
Posts: 172
Need assistance modifying Salifert Potassium test to lower PPM

I bought a salifert Potassium test kit for measuring my potassium. However, the ppm range is 1 drop for > 470ppm, 10 drops for 400 ppm and 25 drops for 250 ppm.

Can I do some simple division or multiplication and add extra water to reduce the ppm to a reasonable freshwater level such as 10 to 100ppm? Or is the scale not adjustable like that?
Ddrizzle is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 05-06-2019, 11:50 PM
Moderator
 
Darkblade48's Avatar
 
PTrader: (3/100%)
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 11,435
I would imagine that if you take your aquarium water, and then do a 1/10 in dilution, then follow the same instructions, you could (theoretically) get ppm readings that are 10x more sensitive (e.g. down to from 47 ppm down to 25 ppm, in divisions of 1 ppm, as the original test kit is in jumps of 10 ppm per drop).

Also, I thought the Salifert K test was for saltwater aquariums? Does it work for freshwater as well?

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 #3 of 4 (permalink) Old 05-07-2019, 12:50 AM
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Feb 2017
Location: PA
Posts: 1,122
Yes: unfortunately, the Salifert is for saltwater and would be nearly impossible to gauge freshwater levels with any accuracy.

A freshwater option: https://www.plantedtank.net/forums/1...l#post11196305

Although it's limited to being accurate in the 5-15 ppm range and will tell you if it is 20 ppm or higher.
Deanna is offline  
 
post #4 of 4 (permalink) Old 05-07-2019, 03:09 AM Thread Starter
Planted Member
 
PTrader: (0/0%)
Join Date: Jan 2019
Posts: 172
Hmm why does salifert only work in salt water? The api calcium test can be adjusted like this.
Ddrizzle 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



Similar Threads
Thread Thread Starter Forum Replies Last Post
EI Dosing Contradiction using Rotal Butterfly Redagg65 Fertilizers and Water Parameters 4 10-17-2018 10:27 PM
Best Test Kit Comparison for N/P/K/Fe??? Mxx Fertilizers and Water Parameters 0 07-10-2011 11:41 PM
Does Flourite Absorb and Stores Nitrate? Natty Substrate 14 06-09-2008 02:59 PM
Mixing reference solutions? ColeMan Fertilizers and Water Parameters 10 05-07-2008 12:36 AM
Test Review Journal: Seachem FE, NO2 & NO3,Phosphate; Red Sea KH,GH,pH FiberCon Fertilizers and Water Parameters 9 06-17-2004 05:53 PM

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