Re: [APD] Re: RO/DI setup vs. CO2 setup

["S. Hieber" <shieber at yahoo_com>]

CO2 works great. Ought to work fine with the alkalinity
(carbonate hardness) you have.

sh
--- Bryan Koen <bryan at koen_net> wrote:

> The numbers are from the tank.
> 
> The discus buffer has been used only once to bring the pH
> down to 6.8-7.0.
> 
> What products are recommended to keep the pH down?
> 
> Thanks,
>   Bryan
> 
> Tom Wood wrote:
> 
> > "I have just purchased a new test kit and now have
> numbers that are on 
> > the scale at least.
> >
> > Alkalinity around 80 ppm
> > Total hardness around 120 ppm."
> >
> > Those numbers don't seem so high. Read this: 
> > http://www.thekrib.com/Plants/CO2/khgh.html
> >
> > A quoted section:
> >
> > "Water hardness follows these guidelines:
> >
> > 0 -  4 dH,    0 -   70 ppm : very soft
> > 4 -  8 dH,   70 -  140 ppm : soft
> > 8 - 12 dH,  140 -  210 ppm : medium hard
> > 12 - 18 dH,  210 -  320 ppm : fairly hard
> > 18 - 30 dH,  320 -  530 ppm : hard
> > higher : liquid rock (Lake Malawi and Los Angeles, CA)"
> >
> > "What is the primary concern with phospates? Is it just
> because algae 
> > really enjoy them. I have several cory cats and sharks
> to do the 
> > cleanup of the algae."
> >
> > Yeah, algae can get going faster than the cleanup crew
> can help. When 
> > I used Discus Buffer way back when, Black Brush Algae
> (BBA) ran 
> > rampant. Dunno how long your tank has been set up, but
> I wouldn't do 
> > it that way.
> >
> > You may also want to read through this: 
> > http://www.thekrib.com/Plants/CO2/alkalinity.html since
> a high amount 
> > of PO4 can mess with the alkalinity reading. Are those
> numbers above 
> > from the tank or from the tap?
> >
> > TW
> >
> >
> >
> >
> > _______________________________________________
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> > http://www.actwin.com/mailman/listinfo/aquatic-plants
> >
> >
> 
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=====
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