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Re: profile as substrate
To be very accurate :
- GH and GH don't concern all minerals but only : Béryllium, Calcium,
Magnésium, Strontium ,Baryum, Radium ,( to Yvan Alleau : they are called ,in
french, alcalino-terreux),in fact in our hobby :calcium and magnesium ; don't
forget magnesium : the GH of Malawi ( or an other big african lake, I've
forgotten which) is based principally on magnesium.
- TDS meter measures not all disolved substances but only ( that's enough)
the total amount of ions ( for exemple : minerals like Fe++ and Fe+++ ( rust
= Fe2O3/Fe3O4) or organic like acétic acid (vinegar) ).
J.Besson
M.LIEBANES a écrit:
> Neither is telling lies, you're just misinterpreting the result!
> GH and KH are "true" measures of water hardness, i.e. the content of
> disolved MINERALS in the water, the TDS meter measures all disolved
> substances in your wate, including non mineral elements, that can mean,
> for example, the various forms of oxidised iron, various acidic
> components etc. which is why you're getting what appear to be
> conflicting results. Note that as you get closer, and into, your
> substrate you should find that there are some widely varying results. I
> would think that your measurements are pretty well fine, maybe still
> a 'bit' hard, but certainly nothing to worry about and I wouldn't
> expect your fish to have probs, it's just that Amazonian water can have
> 0 hardness, something which can be difficult to reach and maintain
> safely in an aquarium.
> This is my understanding of the differences between TDS and hardness,
> PLEASE correct me if I'm wrong, I hate to diseminate false info.
> C:-)lin
>
> ----- Mensaje Original -----
> De: "Al Smith" <alsmith1@mindspring.com>
> Fecha: Miercoles, Abril 25, 2001 1:22 am
> Asunto: Re: profile as substrate
>
> >
> > ----- Original Message -----
> > From: "J Miller" <ruddigar_99@yahoo.com>
> > To: "Apisto List" <apisto@listbox.com>
> > Sent: Tuesday, April 24, 2001 7:25 AM
> > Subject: Re: profile as substrate
> >
> >
> > > Al,
> > >
> > > One of my best planted tanks is a thirty five gallon tank that has
> > > been set up for about five years. The substrate is nothing but
> > silica> gravel, about 3mm. The plants grow well with good light
> > (about 80W
> > > flourescent), and CO2, with a weekly addition of liquid
> > fertilzer and
> > > the odd Jobes plant spike.
> > >
> > > HTH
> > >
> > > J
> > > >
> > > > The aquatic planting soil is suppose to be the same stuff as
> > the soil
> > > > conditioner..the soil conditioner on the Shcultz page says it is
> > > > inert
> > > > also..also I just used a condutivity meter not a reagent kit...the
> > > > stuff
> > > > looks nice in the tank....but changing the water chemistry is not
> > > > good.....just looking for something simple to grow some of the
> > easy> > plants....looking for ideas from others who grow plants in
> > soft water
> > > > and do
> > > > not go the super substrate method..if there is such a way...
> > > >
> > > > AL
> >
> > Hello Again:
> > I just checked my water with 2 reagent kits 1, hagen 2,
> > aquariumpharm.
> >
> > hagen gh=3 gd/h
> > kh = 2.8 degrees hardness
> >
> > A. P. gh= 5 degrees
> > kh= 4 degrees
> > this kit has no refrence color as to where you
> > stop..it just
> > says when green...well is it lime green olive green or the first
> > shade that
> > resembles green...
> >
> > now my conductivity meter reads 350 ppm....or microsiems....
> > do the reagent kits fall in line as in the reading from the meter...?
> > reason being as I want to make a 75 gallon amazon biotope
> > setup...plants,apistos,tetras,barbatus cories,zebra plecos and
> > other misc. amazon fish...My
> > problem is if the profile will alter my water....the readings
> > above are from
> > a tank with profile in it...plants growing like a jungle...Now is
> > the TDs
> > and conductivity meter reading my hardness or just any additives
> > in the
> > water...
> > I do not want to use a sharp substrate like laterite as it raises
> > hell on
> > the barbatus barbs as they burrow in the substrate ..All in a
> > nutshell my
> > meters read hard water my kits read softer water...WHY...
> >
> > AL
> >
> >
> >
> >
> >
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