EI dosing wait period - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 03-29-2016, 11:49 PM Thread Starter
Algae Grower
 
Camber's Avatar
 
PTrader: (0/0%)
Join Date: Mar 2015
Location: Toronto
Posts: 39
EI dosing wait period

I understand that you can't dose macro and micro at the same time. But what is the shortest amount of time I have to wait until I can dose again and I get no negative effects of dosing macro and micro together?

This isn't for practicality. I'm just curious and maybe it'll be handy in the future for some reason.
Camber is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 03-29-2016, 11:51 PM
Wannabe Guru
 
sohankpatel's Avatar
 
PTrader: (0/0%)
Join Date: Jul 2015
Location: Naperville, Illinois
Posts: 1,617
Until they are dissolved. You can dose one after another if you dose into a powerhead.I do it and never see iron precipitate out.

A 17-year old that faces parental opposition in this hobby

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.
sohankpatel is offline  
post #3 of 5 (permalink) Old 03-30-2016, 01:08 AM Thread Starter
Algae Grower
 
Camber's Avatar
 
PTrader: (0/0%)
Join Date: Mar 2015
Location: Toronto
Posts: 39
Quote:
Originally Posted by sohankpatel View Post
Until they are dissolved. You can dose one after another if you dose into a powerhead.I do it and never see iron precipitate out.
Meaning if my ferts are pre mixed I can potentially dose at the same time?
Camber is offline  
 
post #4 of 5 (permalink) Old 03-30-2016, 01:39 AM
Wannabe Guru
 
dukydaf's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2004
Location: Rome
Posts: 1,273
Quote:
Originally Posted by Camber View Post
Meaning if my ferts are pre mixed I can potentially dose at the same time?
Yes.

Most worry about iron-PO4 co-precipitation However this is a problem at high concentrations, thus the solutions for micros ( say 10000ppm Fe) and macros (say 6800ppm PO4) should not be mixed. But once in the aquarium you would have say 0.5ppm(0.0000005 mgFe:1mgH2O) Fe and 2ppm PO4. The lower concentration leads to fewer chances of enough PO4 to colide with the chelated Fe.

The classic EI suggests that micros and NPK should be dosed on separate days. However, as others have, I also noticed signs of Fe deficiency when I skip a day. I did not notice any problems with moving to the EI daily regime.

PO4 can be measured rather accurately so if you want you can try and see at what Fe conc. the PO4 starts to get sign. lower in one day( do this in a container with RODI water and no plants or algae )

On hiatus till later this year
dukydaf is offline  
post #5 of 5 (permalink) Old 03-30-2016, 02:42 AM Thread Starter
Algae Grower
 
Camber's Avatar
 
PTrader: (0/0%)
Join Date: Mar 2015
Location: Toronto
Posts: 39
Thanks a lot!
Camber 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