Andy Pierce
Member
Anyone got a good UK source of chelated iron suitable for high pH, e.g. Fe-EDDHA or Fe-HBED? Any options as part of a trace element mix so like Solufeed TEC except with not Fe-EDTA?
Hi
solufeed Fe7 EDDHA regular works for me 👍
Or Amazon product ASIN B00M48LGKOCheers
Paul
I add dtpa fe to solufeed mix, see no reason why you couldn't add eddha into the mix.Those using Solufeed TEC which comes with Fe-EDTA, do you add the Fe-EDDHA
Within normal pH range (5 to 8), trivalent iron is non-toxic for plants and animals. Bivalent (reduced) iron is somehow different story. Plants must oxygenate their rhizosphere to avoid excess uptake of iron. As for the fish, bivalent iron gets oxidized to trivalent in their gills, precipitates there and hinders their functionality.No worries about too much iron?
Cheers. What % Fe-EDDHA is your powder?Hi Andy
ive not used a premade liquid, my water is clear, when I started with eddha, there was a build up towards the end of the week as I noticed a tinge to the water. i reduced my dosing, now have clear. I dose daily with homemixed liquid dosing ferts, weekly about 0.5g of eddha is added to 180l with co2.
cheers
Paul
I do not get any tint (that I notice) in the water dosing an iron mix of 0.021ppm FeEDDHA, 0.5ppm DTPA and 0.5ppm seachem iron. My FeEDDHA is from bioly.I gave it a go with Fe-EDDHSA but the stuff is very strongly brown coloured. Here it is added to a final concentration of around 0.2 ppm. What final concentration are people using these high pH stable iron chelates at and is the colour an issue for you? @Paul Willi @GHNelson
-Andy