I agree Zeus because as Darrel stated the complex compound of iron but when we have chelated mixes of ferts is it just our iron that is chelated into a more complex compound making it easier for purigen to grab a hold or other micro's too?
Yes, I would think it would.So if the Purigen is mopping up the FeEDHHA which I think is fairly conclusive from the observations of Craig, I can see no reason why it should mop up the FeEDTA or FeDTPA as well
I think it is probably a theoretical concern for planted tank keepers, because the plants are going to mop up any trickle of ammonia (from the breakdown of chloramine) fairly effectively.If after regeneration the purigen releases chloromines that's potentially becoming toxic to live stock?
Fair play to Seachem, that is a pretty straight-forward and unequivocal answer.So seachem got back to me with the following reply
Yes. The more efficient the chelator is the more likely it is to be bound by the purigen. In very hard water (where you would be more likely to FeEDDHA) any iron (Fe++(+)) ions will be mopped up pretty quickly by carbonate (HCO3-), hydroxide (OH-) or phosphate (PO4---) anions and will form insoluble compounds.. I suppose it depends how quickly the plants uptake the iron for any consequences with the purigen?
I'd just see what happens. Plants just need a trickle of iron, they don't need very much. If your plant health is good, with green, normally sized new leaves, then the plants are getting enough iron. That is why I like the response of a <"non-CO2 limited plant as a visual indicator of nutrient levels">, it does a way with a lot of agonising and testing etc.I'm fighting a losing battle with my hard water, po4 from the tap
I'd take it out, otherwise it is constantly going to be fouled by the FeEDDHA and you are going to get through a lot of Purigen......purigen I can remove easily.
RO works because it is a "blank slate", the only things in your tank water are the things you've added. Against that you have the expense and environmental impact.RO seems the only light at the end if the tunnel.
Ceratophyllum spp. are always really floaters, even if you anchor them. Hornwort has been used as a <"model plant"> for plant physiology studies on leaves, because it doesn't have the capacity to ever develop any <"roots">.I've recently acquired some hornwart. I might float abit rather than plant in the substrate
It occurs on all the continents other than (Antarctica) and can grow in a wide range of water hardness, so I would expect that it is pretty efficient at taking up those ions that are in short supply in hard water (like Fe+++). It can definitely use bicarbonate (HCO3-) as <"a carbon source">, which is usually a good indication of adaptation to hard water.... see how it reacts
Whenever I've seen it in the wild it has been free floating, and the same in my tanks and <"water buckets">.it does not develop roots but something similar to enable anchoring?
I've got about a thousand litres of rain-water storage, I use a bit of it for watering the containers, but mostly for the water changes in the tanks and I still run short at some times when its dry.Been thinking about rainwater rather than using RO and could pick up some more water butts 240L which if it rains would be ideal and just pump some of the rainwater into the tank say 50:50 with tap water, but average WC uses about 200-300l weekly,
So my planted hornwort has taken a turn for the worst, needles have gone from green, yellow and now browning so dying. Can I pin this on the fact that it's a floating plant? I'm not 100% sure as I'm finding all my plants are growing, slowly but the older growth as in the leaf before the new one very quickly dies and gets BBA so I'm guessing co2 problem, don't think it's light as I have just a fluval 2.0 over a juwel Rio 125 at about 500mm above substrate level so I'd say that low light.Hi all,Ceratophyllum spp. are always really floaters, even if you anchor them. Hornwort has been used as a <"model plant"> for plant physiology studies on leaves, because it doesn't have the capacity to ever develop any <"roots">.It occurs on all the continents other than (Antarctica) and can grow in a wide range of water hardness, so I would expect that it is pretty efficient at taking up those ions that are in short supply in hard water (like Fe+++). It can definitely use bicarbonate (HCO3-) as <"a carbon source">, which is usually a good indication of adaptation to hard water.