Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Planted Tanks
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 11-24-2004, 01:07 AM   #1
Aquarium Advice Apprentice
 
Join Date: Nov 2004
Location: CA
Posts: 51
Nutrient ratio

Hey Everyone!
I was wondering if anyone knew the optimum ratio of nitrate/ phosphate/ iron/ potassium to promote optimum growth/ minimal algae?

I know the parameters
nitrate 5-10ppm
phosphate .5-1.0ppm
iron .1-.3ppm
potassium 10-20ppm

Just wondering if there was an ideal ratio.

Thanks!
Nystina
__________________

Nystina is offline   Reply With Quote
Old 11-24-2004, 03:49 AM   #2
Aquarium Advice Freak
 
Join Date: Aug 2003
Location: Washington State,USA
Posts: 389
I have read online in the Krib and heard from reliable sources that iron is hard to accurately measure. I have also read and found it to work that when the plants seem a bit "yellow", just add some (Seachem) iron, and perhaps more if they don't green up. Regards a dosing regime, I would follow Rex Grigg's method listed in his FAQ as it works fine for me. I'm not sure what you mean by ratios. If you add the doses to the ppm suggested they will get you to where the tank needs to be.

My fish take care of the nitrates (and almost always the phosphates as well from fish food I believe). Be very careful with over dosing phosphates or big time algae issues can erupt as perhaps you already know. Also, I just add the potassium sulphate at water changes along with epsom salts (for my very soft water to raise the GH) and occasionally iron. Also I dose some micro nutrients. I use plantex csm +B, but one can use flourish as well, though it seems to bring on algae faster. Of late I barely ever fertilize and haven't scraped algae off my tank in months.

The water changes pull out the excess nitrates etc. and allow the ferts to calibrate to an optimal place at least once a week or so, depending on your water change regimen. I think this is a method that Chuck Gadd advocates. HTH
__________________

__________________
26 Gallon Planted Community, 90 Gallon Planted Community - Rena XP3, XP2 Filters, PressurizedCO2, Eco or Flourite, TEK 4x54 T5 light, AH Supply PC s
betowess is offline   Reply With Quote
Old 11-24-2004, 10:24 AM   #3
Aquarium Advice Addict
 
Join Date: Dec 2003
Location: Nebraska, USA
Posts: 6,703
Nystina, what you listed is pretty accurate, although I'd say you can get up to 15ppm nitrate.

What betowess said about measuring iron is true. Iron is just a trace fert. Typically, if you add any amount of iron on any regular basis, your plants won't have a deficiency.
__________________
Former advisor and planted tank geek...life's moved on though.
malkore is offline   Reply With Quote
Old 11-24-2004, 04:02 PM   #4
Aquarium Advice Apprentice
 
Join Date: Nov 2004
Location: CA
Posts: 51
Well, i was just wondering if you had say, nitrate at 10ppm(or what ever the upper threshold may be). Would you want the others at the upper threshold as well? for example:
phosphate 1.0ppm
iron .3ppm
potassium 20ppm

I guess it was more of an optimum ratio, i read something about it once, but i couldn't find it again. I suppose it would be real hard to accurately dose to those measurements anyway.

Thanks for your help!
Nystina
Nystina is offline   Reply With Quote
Old 11-24-2004, 04:51 PM   #5
Aquarium Advice Addict
 
Join Date: Dec 2003
Location: Nebraska, USA
Posts: 6,703
since you can't measure iron, leave it out of the equation.

Shoot for a 1:10 ratio of phosphate:nitrate and you shouldn't get into trouble.
Some say 1:15 or 1:23.

Potassium should be in the 10-20ppm range. From my research its ratio isn't as important as simply HAVING enough.
__________________
Former advisor and planted tank geek...life's moved on though.
malkore is offline   Reply With Quote
Reply

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
co2 formula/ ratio aviran Freshwater & Brackish - Planted Tanks 5 02-16-2006 02:13 AM
looking for gravel ratio diggy415 Freshwater & Brackish - General Discussion 6 07-03-2005 06:07 PM
Dilution ratio for salt midiman Saltwater Reef Aquaria 5 02-02-2005 05:01 PM
LR Displacement Ratio OneBowl Saltwater Reef Aquaria 6 10-28-2004 12:23 PM
lr ratio? Mghslowell Saltwater & Reef - Getting Started 4 06-19-2003 04:54 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 06:31 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.