View Single Post
Old 09-10-2004, 09:54 AM   #4 (permalink)
Edward
Moderator
 
Edward's Avatar
 
Join Date: May 2004
Location: at home
Posts: 2,021
iTrader Ratings: 0
Edward is a valuable member of the communityEdward is a valuable member of the community
Plant Points: 103205
Default Re: N:P ratio or NO3:PO4 ratio?

Quote:
Originally Posted by Laith
are we talking about N & P or NO3 & PO4? :?
Yes, this is confusing. Some research been done with N:P and some with NO3:PO4.

N:P of 10:1 = NO3:PO4 of 10:0.69

Usually, in this hobby, we use NO3:PO4 because our test kits measure NO3 and PO4. In practice, ratio NO3:PO4 of 10:0.69 works great for plants. Keeping it that way is another matter. To maintain this ratio in the water column, dosing NO3:PO4 of 10:1 to 10:3 is needed.

Edward
Edward is offline   Reply With Quote