Flourish Fe

Relic

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Mar 18, 2009
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I downloaded a Flourish calculator (Plant Dose Calculator Version 1) - for 50 gal of water it says to dose 2 ml of Flourish Fe to get 0.1 ppm. On the bottle though it says to dose 5 ml per 50 gal for 0.1 ppm. Does anyone know which is the more reliable dose to follow?
 

Tug

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Go with the 2mL
Or, get Fe Gluconate http://www.aquariumfertilizer.com/index.asp?Option1=inven&EditU=2&Regit=1

Add 8.0 tsp Fe Gluconate into your 250.0 mL container (empty seachem bottle)
filled with distilled water and about 7mL of excel to get the same product as Flourish Fe.

Add just 4 tsp Fe Gluconate into your
250.0 mL container and dose one cap full (5mL) into your 50 gallon tank for 0.1ppm. :)

 
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Relic

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Mar 18, 2009
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Huh, I didn't know there was excel in Flourish Fe either, thanks Tug.
I was planning on switching to Fe Gluconate powder instead of Flourish Fe. I also want to try an all in one solution of CMS+B and Fe Gluconate at some point but I'll need to use up all the Flourish and Flourish Fe I have on hand first.

I am planning to auto dose two 1 liter stock solutions, one for macro's and one for the micro's. I figured out the proportions of NPK for the first stock solution but the micro stock solution is stumping me a bit, that is, I am not quite sure how much Flourish is required for a 1L diluted solution that will give ~0.1ppm each dose with Flourish Fe. My NPK solution will dose 20 ml at at time.

This will come in handy for upcoming holidays!
 

Tom Barr

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Jan 23, 2005
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I'd use Fe glut if you have say a KH or 5 or less.
If 3-5 or higher, consider using Fe DTPA instead.
I mix all 3 Fe forms, my KH is 1.2

I'd add say 20 mls of Excel to each 1 liter solution you make up for macro and micros.
This will keep any funk and fungi from forming.

Those Tom's dosing pumps for 12-15$ or so will dose about 220mls in 1 minute.
So a timer+ minute set function can dose for about 25$ total per solution.
Hard to DIY for less.

You should set up a test run using only plain water and see how it does over say 1 week 1st.
Then.........do the actual trial run using real ferts.

These are cheap but reliable positive diaphragm pumps. I've used them on over flows for a while with all sorts of gunk going through them.
If you ran them say 7 minutes per week, they should last a few years/decades.

So say you need to dose a 180 gal tank 45ppm of NO3 per week:

220X 7= 1.5 liters about.
I add 6 teaspoons or 2 table spoons of KNO3 to that amount(or whatever you'd dose for the week dry volume).
The 1.5 liters is assume dot be dosed evenly over the 7 days till entirely used up.

Most would do say......3 liters worth or 2 weeks total and 4 liter jug would fit this nicely.
Easy.

No math needed really.
Just once you know how much the pump doses/the rate, you add that much water and then what you use to dose dry for the week, 2 weeks etc, whatever time interval you replace the stock solution.

Regards,
Tom Barr



Regards,
Tom Barr
 

Tug

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Those Tom's dosing pumps make a nice gift for the holidays. The price is certainly right at 15 bucks.

Relic,
If you follow Tom's logic, divide the size of your reservoir by the rate it squirts out your stock when it doses the tank. This gives you the number of doses; number of doses x amount of product in a single dose = how much product to add to the reservoir.

Say the reservoir is 1,000mL and doses 20mL/day of a solution and 2mL flourish iron adds 0.1ppm Fe to a 50 gallon tank.

1,000/20 x 2 = 100mL of flourish iron + distilled water make up 1L stock solution.

:eek:
P.S. Sorry, I have no idea what Seachem adds to their trace product to keep any funk and fungi from forming. It could be that they add something like excel or it could be that they add nothing at all. I add excel.
 
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joshvito

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Mar 10, 2010
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I have used these Tom pumps for many things.
They are great. It's harder to find a reliable 1 min timer. I tried a digital GE one, that kept resetting its time to 12:00.
I haven't replaced the timer since then, but I did find that the flow rate of the pump is affected by length of tubing.
 

Relic

Junior Poster
Mar 18, 2009
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Ah ok that's clearer to me now! I'll try a couple Tom pumps next time home and base my stock solutions on puming rates. I did get caught up in the math.

My kH is 4 from the tap and tank. I've seen the kH in both go up to five at certain times during the year so maybe I'll try the three Fe forms in one approach.

Thanks!
 

Tom Barr

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Jan 23, 2005
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Just run a trial test run to confirm that the dosign pump system works using PLAIN water 1st........then.......do the real thing.

I found some nice 1 min timers at Home Depot for 15$ or so.
Cost as much as the Tom's pump.

Regards,
Tom Barr
 

barbarossa4122

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Dec 29, 2009
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Tug;59476 said:
Go with the 2mL
Or, get Fe Gluconate http://www.aquariumfertilizer.com/index.asp?Option1=inven&EditU=2&Regit=1

Add 8.0 tsp Fe Gluconate into your 250.0 mL container (empty seachem bottle)
filled with distilled water and about 7mL of excel to get the same product as Flourish Fe.

Add just 4 tsp Fe Gluconate into your
250.0 mL container and dose one cap full (5mL) into your 50 gallon tank for 0.1ppm. :)


Hi Tug,

I added 13.5 teaspoons to 500ml bottle thinking this will give me a Flourish Iron like solution but, it looks like I was wrong. 2.5 teaspoons wrong. According to you and I know you are correct I should have added 16 teaspoons. Right? I have been messing around lately with the Fe Gluconate powder from AF trying to make a Flourish Iron like solution and the more I read about it the more confusing it gets. So 16 teaspoons of Fe Gluconate powder to 500ml water makes a Flourish Iron like solution ?
 

Tug

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The same, yes. Exactly the same, well no. Not really.

Hi barb,
:gw Given the possibilities, (we might say a gram measure when we mean teaspoon, etc.) some variation is to be expected. What is the actual weight and how to calculate grams from teaspoon measurements of Fe Gluconate is all prone to error. They should be close, but hardly exact. I used my favorite two calculators to answer your question.

24.0 tsp Fe Gluconate into 500.0 mL container, dose of 1.0 mL into a 15.0 gal tank = 0.26ppm

Seachem Iron
dose is 1.0 mL
into a 15.0 gal tank and:
Fe = 0.26ppm
http://www.fishfriend.com/fertfriend.html

Your dose of 13.5 tsp Fe Gluconate into your
500.0 mL container, and a dose of 1.0 mL
into a 15.0 gal tank gives:
Fe = 0.145ppm
http://calc.petalphile.com/

24.0 g Fe Gluconate into
250.0 mL container,
dose is 1.0 mL
into a 15.0 gal tank and:
Fe = 0.211ppm
http://calc.petalphile.com/

8.0 tsp (16tsp) Fe Gluconate into
250.0 mL (500mL) container,
dose is 1.0 mL
into a 15.0 gal tank and:
Fe = 0.171ppm
http://calc.petalphile.com

15gal. = 38 Liters
 
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barbarossa4122

Guru Class Expert
Dec 29, 2009
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Tug;59743 said:
Hi barb,
:gw Given the possibilities, (we might say a gram measure when we mean teaspoon, etc.) some variation is to be expected. What is the actual weight and how to calculate grams from teaspoon measurements of Fe Gluconate is all prone to error. They should be close, but hardly exact. I used my favorite two calculators to answer your question.

24.0 tsp Fe Gluconate into 500.0 mL container, dose of 1.0 mL into a 15.0 gal tank = 0.26ppm

Seachem Iron
dose is 1.0 mL
into a 15.0 gal tank and:
Fe = 0.26ppm
http://www.fishfriend.com/fertfriend.html

Your dose of 13.5 tsp Fe Gluconate into your
500.0 mL container, and a dose of 1.0 mL
into a 15.0 gal tank gives:
Fe = 0.145ppm
http://calc.petalphile.com/

24.0 g Fe Gluconate into
250.0 mL container,
dose is 1.0 mL
into a 15.0 gal tank and:
Fe = 0.211ppm
http://calc.petalphile.com/

8.0 tsp (16tsp) Fe Gluconate into
250.0 mL (500mL) container,
dose is 1.0 mL
into a 15.0 gal tank and:
Fe = 0.171ppm
http://calc.petalphile.com

15gal. = 38 Liters

Great post Tug. I am not confused anymore. Thank you:)