Macro Mix - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 04-08-2016, 03:53 AM Thread Starter
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Oct 2010
Location: Wichita, KS
Posts: 1,049
Macro Mix

I just bought a pound of Macro Mix from Aquarium Fertilizers.com. It is made of equal parts MgSO4, KNO3, K2SO4, and KH2PO4. I used Chucks Calculator to try to get an Idea of what to dose, and, if I use a teaspoon per 10 gallons, I get 3.5 ppm Magnesium, 23 ppm Nitrate, 17 ppm Potassium, and 25 ppm Phosphate, respectively. Am I doing my math right? Isn't that a holy cow amount of phosphate in comparison?

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.

Last edited by livingword26; 04-08-2016 at 03:58 AM. Reason: Change dose amount
livingword26 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 04-09-2016, 05:30 PM Thread Starter
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Oct 2010
Location: Wichita, KS
Posts: 1,049
Anyone? This is a low light low tech tank, and I was planning on keeping my nitrates around 5 ppm anyway, but is having an equal amount of phosphates even usable, in the long run?

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
livingword26 is offline  
post #3 of 11 (permalink) Old 04-09-2016, 06:19 PM
Planted Tank Guru
 
Maryland Guppy's Avatar
 
PTrader: (15/100%)
Join Date: Dec 2014
Location: Arnold
Posts: 3,682
That is an excessive amount of PO4.
Typical NO3 to PO4 ratio is 10:1
If all 4 compounds are all mixed together of equal amounts may not be such a good idea to purchase this.
No flexability in creating your solutions.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Growing is not that difficult.
Maryland Guppy is offline  
 
post #4 of 11 (permalink) Old 04-09-2016, 06:56 PM Thread Starter
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Oct 2010
Location: Wichita, KS
Posts: 1,049
Thats kind of what I thought. Unfortunately, I did't really do the math before I bought it. I have a phosphate test on the way to find out for sure.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
livingword26 is offline  
post #5 of 11 (permalink) Old 04-09-2016, 07:02 PM
Planted Tanker
 
burr740's Avatar
 
PTrader: (126/100%)
Join Date: Feb 2014
Location: Bama
Posts: 5,758
Seen that before, no idea why they did equal parts n,p,k


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




burr740 is online now  
post #6 of 11 (permalink) Old 04-09-2016, 07:03 PM
Planted Tank Guru
 
Seattle_Aquarist's Avatar
 
PTrader: (65/100%)
Join Date: Jun 2008
Location: Seattle, WA
Posts: 6,591
Quote:
Originally Posted by livingword26 View Post
I just bought a pound of Macro Mix from Aquarium Fertilizers.com. It is made of equal parts MgSO4, KNO3, K2SO4, and KH2PO4. I used Chucks Calculator to try to get an Idea of what to dose, and, if I use a teaspoon per 10 gallons, I get 3.5 ppm Magnesium, 23 ppm Nitrate, 17 ppm Potassium, and 25 ppm Phosphate, respectively. Am I doing my math right? Isn't that a holy cow amount of phosphate in comparison?
Hi livingword26,

I believe you may have misread the how the Aquariumfertilizer.com Macro Mix is formulated. The mix is put together by weight not volume so the weight of the various chemicals need to be factored in. That said, I used the APC Fertilator to calculate the ppm for the various components of the mixture if 0.70 grams (weight measurement) of each component where added to a 10 gallon tank. Here are the results:



The results are different but still disturbing: the nitrate ppm is good; the potassium ppm is a just a little high; the magnesium ppm is fine; but the phosphate ppm is still five times (5X) higher than recommended. I did not compute if 2.8 total grams (4 X 0.70 grams) of the mix equals a 'teaspoon' but maybe someone with the mix and a gram scale can do the measurement.

If I were you I would suggest caution.

Roy_________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

75 Gallon, 2X55W AH Supply CF 8800K, 1X 59W Fluval Plant (3.0); 45 Gallon Tall, 1X 46W Fluval Plant (3.0); 30 Gallon Long; Fluval F&P 2.0; 20 Gallon, 1X26W AH Supply LED; all with CO2 & (Calcined) Montmorillonite Clay

Last edited by Seattle_Aquarist; 04-09-2016 at 07:04 PM. Reason: sp
Seattle_Aquarist is online now  
post #7 of 11 (permalink) Old 04-09-2016, 07:51 PM Thread Starter
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Oct 2010
Location: Wichita, KS
Posts: 1,049
Thank you for that calculator. I will use caution, and probably have to get some separate macros.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
livingword26 is offline  
post #8 of 11 (permalink) Old 04-09-2016, 09:34 PM
Banned
 
PTrader: (73/100%)
Join Date: Mar 2009
Location: New York
Posts: 5,942
What is the reasoning for putting so much phosphate into the macro mix? Why would they do that? What you can do is pick up some KNO3 and just add it into the mix. This will bring the phosphate down to recommended levels?
houseofcards is offline  
post #9 of 11 (permalink) Old 04-09-2016, 10:04 PM
Wannabe Guru
 
Doogy262's Avatar
 
PTrader: (20/100%)
Join Date: Aug 2013
Location: Warren,Michigan
Posts: 1,059
Just curious are you buying the macro micro mix from Aquarium Fertilizers because I have been using it for two years and it consists of equal parts KNO3,K2SO4,Mgso4 and CSM+B I see no mention of KH2PO4
unless you have a different batch.
Doogy262 is offline  
post #10 of 11 (permalink) Old 04-10-2016, 12:47 AM Thread Starter
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Oct 2010
Location: Wichita, KS
Posts: 1,049
Quote:
Originally Posted by Doogy262 View Post
Just curious are you buying the macro micro mix from Aquarium Fertilizers because I have been using it for two years and it consists of equal parts KNO3,K2SO4,Mgso4 and CSM+B I see no mention of KH2PO4
unless you have a different batch.
Thats MACRO MICRO MIX, it has no phosphate. I just wanted the MACRO MIX, because I am doing something else for micros.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
livingword26 is offline  
post #11 of 11 (permalink) Old 04-14-2016, 03:58 AM Thread Starter
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Oct 2010
Location: Wichita, KS
Posts: 1,049
Well, I'm just going to use the macro mix for phosphate. In those small amounts, the other ferts are negligible. I just ordered some kno3 and ks204 from Nilog. My phosphate test got here today, and I have 10 ppm. Water change time.

Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
2 Anubias Nana Petite, Christmas moss.
4 Halequin Rasborahs, 5 RCS.
livingword26 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