What readings should I expect after EI dosing? - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 03-29-2010, 04:22 AM Thread Starter
Algae Grower
 
PTrader: (1/100%)
Join Date: Sep 2009
Location: California
Posts: 89
What readings should I expect after EI dosing?

After changing 100% of the water I added
1/8 tsp KNO3
1/32 tsp K2SO4
1/32 tsp KH2PO4
to my 5 gallon tank. A lot I think, but didn't find a dosing scale for nano tanks so I went with the 10 gallon measurements.

I know that when fertilizing using the EI you are not supposed to test your parameters often, but since I just started with the regimen I did some testing.

The nitrates were at 20ppm and the phosphates at 5ppm. I know that the dosage was maybe double what's needed for 5G and that the EI is intended to add a little surplus. Still, isn't 20ppm of NO3 too low and 5ppm of phosphates too high? Should I expect an algae bloom?

(The tank has a yeast mix for CO2, no inhabitants except the plants, 20watts of CF light and eco-complete for substrate)

Also, how many ml of Flourish Comprehensive should I add?
rvel is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 03-29-2010, 05:47 AM
Children Boogie
 
mistergreen's Avatar
 
PTrader: (13/100%)
Join Date: Dec 2006
Location: Cincinnati
Posts: 16,743
You're fine. NO3 & PO4 doesn't create algae conditions. It's high light, ammonium, and low/variable CO2.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
mistergreen is offline  
post #3 of 6 (permalink) Old 03-29-2010, 06:11 AM Thread Starter
Algae Grower
 
PTrader: (1/100%)
Join Date: Sep 2009
Location: California
Posts: 89
Quote:
Originally Posted by mistergreen View Post
You're fine. NO3 & PO4 doesn't create algae conditions. It's high light, ammonium, and low/variable CO2.
Thanks .

I understand that, but shouldn't there be like a lot more NO3 and a bit less PO4?
rvel is offline  
 
post #4 of 6 (permalink) Old 03-30-2010, 12:53 AM
Planted Tank Guru
 
PTrader: (0/0%)
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 11,721
See how the plants do for a few days and how much of each nutrient they use. If you find the NO3 drops pretty fast, but the PO4 just sort of hovers there, then you know that you can add more KNO3 and less KH2PO4.
Start by following the label directions on the Comprehensive. It is pretty low in N-P-K.
Diana is offline  
post #5 of 6 (permalink) Old 03-30-2010, 06:58 AM Thread Starter
Algae Grower
 
PTrader: (1/100%)
Join Date: Sep 2009
Location: California
Posts: 89
Thanks Diana
rvel is offline  
post #6 of 6 (permalink) Old 03-30-2010, 05:25 PM
Planted Tank Guru
 
plantbrain's Avatar
 
PTrader: (267/100%)
Join Date: Dec 2003
Location: The swamp
Posts: 13,609
I dose 15ppm NO3 ans 5 ppm of PO4 3x a week.
Your tank seems fine assuming the test kits are correct and have been calibrated, which does not seem to be the case more often than not.

Are they?

Regards,
Tom Barr




Regards,
Tom Barr
plantbrain 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