Re: Aquatic Plants Digest V3 #735

[George Slusarczuk <yurko at warwick_net>]

Hello Harvey,


> Hi everyone,
> I seem to have accidentally fallen off the list for a while. Glad to be
> back.
> I saw a post about a liquid chelated iron product from DRAGON. The
> analysis of this
> product is:
>         Mg    0.5%        Magnesium Lignosulfonate
>         S       3.9%
>         B       0.02%
>         Cu     0.25%      Copper Lignosulfonate
>         Fe     6.0%         Iron Lignosulfonate
>         Mn    0.25%       Manganese Lignosulfonate
>         Zn     0.5%         Zinc Lignosulfonate
>                                   Sulfuric Acid
> I get the impression that 0.1mg/l of iron is a reasonable target, and if
> 
> I have done my
> math correctly adding 1.6ml of this product per liter of tank
> replacement water I will
> have the correct concentration. (somebody check my math please).

If your solution is 6% in iron, then it contains 60 g/liter iron. That
is 60 mg/mL. In 1.6 mL you will have about 100 mg Fe. Adding that to 1
liter will give you 100 ppm iron solution. (1 ppm = 1 mg/L)

Best,

George

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