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</DIV><H1>How long does laterite last for?</H1><DIV id=Qtextbox><P><STRONG>Author: hungsta</STRONG><BR><BR>How long does laterite last for?

</P></DIV><H2>Replies »</H2><DIV id=Atextbox><P><STRONG>Author: PHL0703</STRONG><BR><BR>Apparently between 1 to infinite years, depending on your planting, and if you have substrate heating. You can always add laterite balls to replenish parts that you need.

</P></DIV><DIV id=Atextbox><P><STRONG>Author: hungsta</STRONG><BR><BR>Thank you..... but fluorite last forever. Am i right??

</P></DIV><DIV id=Atextbox><P><STRONG>Author: Brett4Perth</STRONG><BR><BR>When you ask how long laterite/flourite lasts,

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I presume you mean how long till the iron in these substates is exhausted.

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I guess it would depend on the nature of the plants you are growing, like any "fertilizer" heavy feeding rapid growing plants will use it more quickly. I would suspect it lasts for several years, but I doubt either is "infinate".

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Brett

</P></DIV><DIV id=Atextbox><P><STRONG>Author: PHL0703</STRONG><BR><BR>Flourite apparently lasts for a long while, but not sure how much Fe it releases compared to laterite. I don't think anyone has a setup that is static for long enough to find out.

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I know that laterite has ninding site that can be recharged with Fe from the water if you can get a slow flow of water through it, hence substrate heating.

</P></DIV><DIV id=Atextbox><P><STRONG>Author: nornicle</STRONG><BR><BR>indeed, laterite has some sort of negative charge to it or something like that, and attracts postive charge (might have it the wrong way round) iron (FE+) to it, so in theory wil last forever if you keep dosing iron

</P></DIV><DIV id=Atextbox><P><STRONG>Author: nornicle</STRONG><BR><BR>indeed, laterite has some sort of negative charge to it or something like that, and attracts postive charge (might have it the wrong way round) iron (FE+) to it, so in theory wil last forever if you keep dosing iron

</P></DIV><DIV id=Atextbox><P><STRONG>Author: hungsta</STRONG><BR><BR>Will put the theory into practice

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Thanx guys

</P></DIV><DIV id=Atextbox><P><STRONG>Author: PHL0703</STRONG><BR><BR>

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It's the cation binding site, and you'll need to get the Fe there in the first place; normal setups will not get the Fe there, as you need a slow water flow though the laterite, hence heating cable.

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If you are really interested, read Dupla 10 point for an Optimum aquarium, or if you really keen (and very lucky, as the English ed of the book is no longer in print), get The Optimum Aquarium by Horst & Kipper.

</P></DIV><DIV id=Atextbox><P><STRONG>Author: nornicle</STRONG><BR><BR>keener still you can watch the optimum aquarium video if you can get your hands on it

Richard 'Nornicle'

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<P><STRONG>Author: PHL0703</STRONG><BR><BR>Actually the video is easier to obtain than the book; I missed out on one on eBay, stopping at US$25, as I thought that was a lot for a second hand book, but later noticed second hand copied were being sold for as much as US$60!

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