Thanks, if i read it right, if my ph is around 6.5 and i add edta iron, it will last long enough to dose once a week ?Hiya, I don't have full access to this article so have no idea what the test conditions were, ie water hardness, availability of light etc. However there is a table that possibly sheds some light on the subject of Iron availability against time of various chleates.
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I think it turns your water pink, hence not favoured.never seen ferts with EDDHA, maybe because it's not cheap ?
Totally guessing here but suspect in our aquariums the chleates, and or the availability of iron will break down much quicker than suggested in the charts above., it will last long enough to dose once a week ?
That one.With practice I ended up dosing it so there was just the slightest hint of pink, slightest hint of pink indicating FeEDDHA was present and available
Hiya, I don't have full access to this article so have no idea what the test conditions were, ie water hardness, availability of light etc. However there is a table that possibly sheds some light on the subject of Iron availability against time of various chleates.
View attachment 199528
Just an unknown really, that's why I recommend a visual method like the <"Pink Tint"> and / or <"Duckweed Index">.So if I understood right, if I want to add 0,09ppm Iron + micros EDTA per day in an ph around 7 in the tank.. I would need to actually add 0,18ppm per day in this case?
Also water 'hardness' i.e. the amount of Ca and Mg ions present in the water column and phosphate concentration. Also UV though for most this will not be a factor. I dose Fe EDTA on alternative days after about three hours of CO2 injection and just as the lights come on.chelator availibility is pH related,
Apparently, what the table says is that at a pH of 7.25, half of the EDTA iron was lost after just 1 hour.So if I understood right, if I want to add 0,09ppm Iron + micros EDTA per day in an ph around 7 in the tank.. I would need to actually add 0,18ppm per day in this case?
Sorry if its too obvious to interpretation but I am not an native english speaker. What are your opinion folks (@Happi; @burr740; @JoshP12; @dw1305 )?