Where to buy dry fe from and how much to use

[leedsrhinojohn]

My plants are showing an iron deficiancy so i need to dose iron but i can only find ready made liquid versions.
Where can i buy dry fe from?
How much do i need to make up a solution of 500ml to dose 0.1mg per week (is that enough?)

 

[G H Nelson]

https://www.ebay.co.uk/itm/Chelated...quarium-50g-/253134804098?hash=item3af0029482
https://www.ebay.co.uk/itm/Chelated...quarium-50g-/253134804106?hash=item3af002948a
hoggie

 

[leedsrhinojohn]

Thanks Hoggie
Never thought about ebay.

 

[G H Nelson]

Gives you information on the bottom of the page regarding making the solution/dosing!
Cheers
hoggie

 

[leedsrhinojohn]

It doesnt say by how much it will raise the iron level, is there a way to work this out?
Also because of my job i cant dose daily so i do weekly, is it just a case of simply multiplying the daily dose by 7?

 

[G H Nelson]

http://www.aquariumcalculators.com/parts-per-million/tank-ppm-calculator/