Estimative Index Dosing Guide - Page 2 - Fertilizing - Aquatic Plant Central

Go Back   Aquatic Plant Central > Special Interest Forums > Fertilizing

Fertilizing Science of Aquatic Fertilizing - Discuss fertilizing techniques and proper aquatic plant nutrition here.

Like Tree1Likes
Reply
 
LinkBack Thread Tools Display Modes
Old 01-14-2007, 01:04 PM   #11 (permalink)
Member of SCAPE
 
turbomkt's Avatar
 
Join Date: Mar 2004
Location: San Diego, Ca
Posts: 2,249
iTrader Ratings: 15
iTrader Positive Rating: 100%
turbomkt is an inspiration to us all turbomkt is an inspiration to us all turbomkt is an inspiration to us all turbomkt is an inspiration to us all
Default

Actually, KNO3 and KH2PO4 won't cause any problems. What you need to avoid are mixing KH2PO4 and your iron (Fe) source. The two will precipitate out in some cases.

Are you sure you saw that on Rex's site? I didn't find that phrase on there.
turbomkt is offline   Reply With Quote

Advertisement [Remove Advertisement]
Old 01-14-2007, 01:50 PM   #12 (permalink)
 
Join Date: Dec 2005
Posts: 4,130
iTrader Ratings: 161
iTrader Positive Rating: 100%
John N. is a valuable member of the community John N. is a valuable member of the community John N. is a valuable member of the community
Default Precipitate: KH2PO4 and Iron

Mike is correct,
  • Adding KNO3 and KH2PO4 together will not cause problems. The above statement is mistaken when dosing in large bodies of water such as an aquarium. In small containers you might have an issue.
  • Adding KH2PO4 and Fe (from traces) can cause a precipitate (white powder) to come out of solution. This chelated iron precipitate is now no longer available to the water column, and must now be taken up from the roots where the powder will settle.
  • Mixing macro elements and trace elements in the same bottle forms a highly concentrated and volatile solution of chemicals in a small amount of water (500ml). This could result in precipitation, cloudy and ineffective mixtures. That's why we shouldn't mix the chemicals together in a small container.
Bottom line with dosing together: When dosing the chemicals (macro and micro) in our aquariums together, you won't have a problem because they are now in a very diluted solution. However to prevent any precipitation (cloudiness), we can dose macro and micros on off days so that each are consumed before the introduction of the other.

-John N.
John N. is offline   Reply With Quote
Old 01-15-2007, 03:01 AM   #13 (permalink)
 
Join Date: Sep 2006
Posts: 34
iTrader Ratings: 0
morta_skuld is a regular member
Default

will it also precipitate when traces and iron is mixed with kno3?

I had time to see the fertilator and im still digesting some of it hehehe. Anyway. can i put mgso4 and caco3 every time i put the macro. Or i will dose it on a different occasion say once or twice a week? Just a newbie question.
morta_skuld is offline   Reply With Quote
 
Old 01-15-2007, 05:43 AM   #14 (permalink)
Member of SCAPE
 
turbomkt's Avatar
 
Join Date: Mar 2004
Location: San Diego, Ca
Posts: 2,249
iTrader Ratings: 15
iTrader Positive Rating: 100%
turbomkt is an inspiration to us all turbomkt is an inspiration to us all turbomkt is an inspiration to us all turbomkt is an inspiration to us all
Default

Fe and KNO3 should be fine. As for MgSO4 and CaCO3, what are your goals? You should be fine adding it with water changes and that's it.
turbomkt is offline   Reply With Quote
Old 01-15-2007, 06:11 AM   #15 (permalink)
Senior Member
 
Join Date: Aug 2006
Posts: 202
iTrader Ratings: 1
iTrader Positive Rating: 100%
nswhite is a regular member
Default

Wow this is a very good thread. Short and sweet and straight to the point.
nswhite is offline   Reply With Quote
Old 01-15-2007, 08:43 AM   #16 (permalink)
Senior Member
 
eklikewhoa's Avatar
 
Join Date: Jul 2006
Location: Houston,TX
Posts: 1,946
iTrader Ratings: 16
iTrader Positive Rating: 100%
eklikewhoa is a regular member
Default

here's a link to rex's site and its in bright red at the bottom where he states the above. Rex's Guide to Dosing Dry Ferts
eklikewhoa is offline   Reply With Quote
Old 01-15-2007, 09:38 AM   #17 (permalink)
Member of SCAPE
 
turbomkt's Avatar
 
Join Date: Mar 2004
Location: San Diego, Ca
Posts: 2,249
iTrader Ratings: 15
iTrader Positive Rating: 100%
turbomkt is an inspiration to us all turbomkt is an inspiration to us all turbomkt is an inspiration to us all turbomkt is an inspiration to us all
Default

Ahhh. Guess what I think he means there...

If you confuse KNO3 and KH2PO4, you can have problems. Basically you could end up with extremely high PO4 levels and next to no NO3. That would be a recipe for disaster as your tank gets completely unbalanced.
turbomkt is offline   Reply With Quote
Old 01-15-2007, 01:34 PM   #18 (permalink)
Senior Member
 
BryceM's Avatar
 
Join Date: Nov 2005
Location: South Central Idaho, USA
Posts: 4,332
iTrader Ratings: 42
iTrader Positive Rating: 100%
BryceM is an inspiration to us all BryceM is an inspiration to us all BryceM is an inspiration to us all BryceM is an inspiration to us all
Default

Or in other words, it's ok to mix them together, but don't mix them up.
BryceM is offline   Reply With Quote
Old 01-15-2007, 05:01 PM   #19 (permalink)
 
Join Date: Sep 2006
Posts: 34
iTrader Ratings: 0
morta_skuld is a regular member
Default

Quote:
Originally Posted by turbomkt View Post
Fe and KNO3 should be fine. As for MgSO4 and CaCO3, what are your goals? You should be fine adding it with water changes and that's it.
thanks man!
morta_skuld is offline   Reply With Quote
Old 01-22-2007, 03:51 AM   #20 (permalink)
Senior Member
 
eklikewhoa's Avatar
 
Join Date: Jul 2006
Location: Houston,TX
Posts: 1,946
iTrader Ratings: 16
iTrader Positive Rating: 100%
eklikewhoa is a regular member
Default

so you are not suppose to mix fe with kh2po4 but seachem's suggested dosing chart suggest dosing iron everyday.

wouldnt the seachem products have the same problem with mixing iron and phosphates?

Last edited by eklikewhoa; 01-22-2007 at 04:05 AM..
eklikewhoa is offline   Reply With Quote
Reply


Aquatic Plant Central > Special Interest Forums > Fertilizing > Estimative Index Dosing Guide

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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


Similar Threads
Thread Thread Starter Aquatic Plant Forum Replies Last Post
The Estimative Index?? AV8TOR Fertilizing 5 04-26-2010 08:19 AM
estimative index ccs Algae 6 04-14-2009 08:36 PM
Perpetual Preservation System v.2004 Edward Fertilizing 99 04-19-2005 11:46 AM
Max rates vs minimum, Estimative index and the "just en plantbrain Fertilizing 12 08-25-2004 07:26 PM


All times are GMT -8. The time now is 10:28 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

Search Engine Friendly URLs by vBSEO 3.6.1