All in one EI dosing AM or PM?
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > Plants


Reply
 
Thread Tools Display Modes
Old 10-25-2013, 06:57 AM   #1
Jalopy
Planted Member
 
PTrader: (3/100%)
Join Date: Aug 2013
Location: SF Bay
Posts: 280
Default

All in one EI dosing AM or PM?


I'm dosing an all in one EI solution. The chelated iron does not react with the phosphate due to the ascorbic acid I add according to the recipe I follow. The pH of the solution ends being less than 6 because of the acid and I also use distilled water. I dose at night just before going to sleep because I usually forget to do it in the morning. My tank's pH is around 7.3 without the CO2 at night.

If I dose at midnight would the plants use any of the iron before it reacts with the phosphate? How long does it take for the iron to bind with the phosphate normally? Thanks.
Jalopy is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 10-25-2013, 07:02 AM   #2
ryantube
Planted Tank Obsessed
 
ryantube's Avatar
 
PTrader: (88/100%)
Join Date: Jan 2012
Location: Alhambra, CA, USA
Posts: 441
Default

What's your recipe?
ryantube is offline   Reply With Quote Quick reply to this message
Old 10-25-2013, 07:06 AM   #3
Jalopy
Planted Member
 
PTrader: (3/100%)
Join Date: Aug 2013
Location: SF Bay
Posts: 280
Default

50g potassium nitrate
11.5 potassium phosphate
20g potassium sulphate
40g epsom salt
2.5g ascorbic acid
1g potassium sorbate
30g CSM+B

1000mL distilled water
60ml dose on MWF, each 60mL is about 10ppm nitrate.
25% water change on Sunday.

By the way, my plants are growing well. I was just wondering if they would grow better if I dose in the morning instead.

Last edited by Jalopy; 10-25-2013 at 07:07 AM.. Reason: plants are fine
Jalopy is offline   Reply With Quote Quick reply to this message
Old 10-25-2013, 06:57 PM   #4
Darkblade48
Moderator
 
Darkblade48's Avatar
 
PTrader: (3/100%)
Join Date: Jan 2008
Location: Toronto
Posts: 8,730
Default

Dosing in the morning versus the evening should not make a difference, as following EI means you have an excess of nutrients in the water column anyway.

However, looking at your recipe, there may be the possibility that the iron in CSM+B will react with the potassium phosphate (causing insoluble ferric phosphate to precipitate).
__________________
Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
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 online now   Reply With Quote Quick reply to this message
Old 10-25-2013, 07:48 PM   #5
Jalopy
Planted Member
 
PTrader: (3/100%)
Join Date: Aug 2013
Location: SF Bay
Posts: 280
Default

The ascorbic acid is supposed to drop the pH so that the chelated iron does not react with the phosphate. I'm basically wondering if plants will absorb nutrients at night or only when the lights are on?
Jalopy is offline   Reply With Quote Quick reply to this message
Reply

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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

Forum Jump


All times are GMT. The time now is 07:52 AM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012