Thanks for the explanation, I believe the other principle African lake is Tanganyika, though I've never been interested enough in these fish to be an authority;-) C:-)lin ----- Mensaje Original ----- De: Jacques BESSON <jbesson@club-internet.fr> Fecha: Miercoles, Abril 25, 2001 1:29 pm Asunto: 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 > > > > > > > > > > > > > > > > > > --------------------------------------------------------------- > ---- > > > ------ > > > This is the apistogramma mailing list, apisto@listbox.com. > > > For instructions on how to subscribe or unsubscribe or get help, > > > email apisto-request@listbox.com. > > > Search http://www.digital.com for "Apistogramma Mailing List > > > Archives"! > > > > ___________________________________________________________________ > > Consigue tu e-mail gratuito TERRA.ES > > Haz clic en http://www.terra.es/correo/ > > > > ----------------------------------------------------------------- > -------- > > This is the apistogramma mailing list, apisto@listbox.com. > > For instructions on how to subscribe or unsubscribe or get help, > > email apisto-request@listbox.com. > > Search http://www.digital.com for "Apistogramma Mailing List > Archives"! > > > ------------------------------------------------------------------- > ------ > This is the apistogramma mailing list, apisto@listbox.com. > For instructions on how to subscribe or unsubscribe or get help, > email apisto-request@listbox.com. > Search http://www.digital.com for "Apistogramma Mailing List > Archives"! ___________________________________________________________________ Consigue tu e-mail gratuito TERRA.ES Haz clic en http://www.terra.es/correo/ ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. 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