Greg Watson's 10% Iron Chelate

Roan Art

Roan Art

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Oct 7, 2005
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My tap water tests out from .1-.2 iron, but by the time I do a waterchange -- every 4 days -- the tank is usually at 0.

I bought some Flourish Iron and have been using that to dose on the 2nd or 3rd day to keep the iron at .1. The plants seem to appreciate it, so I purchased some Chelated Iron from Greg Watson.

I am unsure how to mix this stuff :) As the subject says, it's 10% Iron Chelate. I'd like to create a mixture for dosing a 10g tank that I can increase for my 20, 36, and 75g tanks.

Any help appreciated!

Roan
 
I would calculate it using the formula for a prolonged bath treatment (taken from "Fish Hatchery Management" Piper, McElwain et al. U.S. Fish & Wildlife Service) which is the [capacity (volume) of water to be treated] X [final concentration desired (ppm)] X [correction factor] / [strength of chemical (decimal)]

So 10gal X .1ppm X .00378* / .1 = .0378grams

*the correction factor is taken from said book to convert volume or capacity to weight (i.e. grams -> gallons)

So .0378 grams will give you .1ppm of iron in the 10gallons. If you multiply .0378 out by whatever volume of water you want to store it in (say a 250ml bottle...250 X .0378 = 9.45grams), you can dose 1ml of that mix (the 9.45grams dissolved into a 250ml bottle of water) into 10gals to get .1ppm.

HTH
Bill
 
I have a bag of this too, that I need to start using but have no scale.

Can anyone tell me what the teaspoon equivalent of this formula would be for ten gallons.

Thanks
 
Well, for a 90gallon tank, it's about 1/8th of a teaspoon so for a 10gallon tank it would be about 1/9th of 1/8th :D
 
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