lol - i stand by my references.
Well LOL, ok - lots off theoretical stuff
- but at last all this didnīt adress the simple question what aquatic test can NOW measure ALL iron in our aquatic tanks.
And I am little bit surprised that noone here can name any good iron test kit by (brand name).
So, I now contacted some companies and figured out that many kits just seem to be trash.
But I had some luck and found a good iron test kits: http://www.wasserpantscher.at/produc...isentest-.html
They claim it measures all iron sources and this seem to be true.
Results are attached, i tested different chelates with the iron test kit and the kit was able to measure each off it: