Increasing KH

[Squeek]

Hi everyone!

Can someone please tell me what is the best way to increase my KH (its way
below 120ppm) without disturbing the ph.
Id like to keep the ph very stable at around 7.0-7.4 while fishless cycling
the tank is 750L (198gal)

Thankyou for your suggestions ;-)

Ves

[Angrie.Woman]

"Squeek" > wrote in message
...
> Hi everyone!
>
> Can someone please tell me what is the best way to increase my KH (its way
> below 120ppm) without disturbing the ph.
> Id like to keep the ph very stable at around 7.0-7.4 while fishless
> cycling
> the tank is 750L (198gal)
>
> Thankyou for your suggestions ;-)
>
> Ves


I don't have a clue, but I'm crossposting this to the Freshwater group as
there are some serious chemists there.

A

[Elaine T]

Angrie.Woman wrote:
> "Squeek" > wrote in message
> ...
>
>>Hi everyone!
>>
>>Can someone please tell me what is the best way to increase my KH (its way
>>below 120ppm) without disturbing the ph.
>>Id like to keep the ph very stable at around 7.0-7.4 while fishless
>>cycling
>>the tank is 750L (198gal)
>>
>>Thankyou for your suggestions ;-)
>>
>>Ves
>
>
>
> I don't have a clue, but I'm crossposting this to the Freshwater group as
> there are some serious chemists there.
>
> A
>
>
Changing KH changes the pH because of the interaction with carbonic acid
formed from atmospheric CO2. The combination of KH and CO2 (mostly)
determines the pH of your water. There are other buffering ions in
tankwater that have an effect on pH, but carbonates are the predominate
ones.

To have your pH between 7.0 and 7.4 with atmospheric C02 of 2.5-5ppm,
you need your KH to quite low - around 3 german degrees. I think that's
about 51 ppm. http://www.thekrib.com/Plants/CO2/kh-ph-co2-chart.html
has a chart and tables of the pH/KH/CO2 relationship. Adding baking
soda (sodium bicarbonate) at the rate of 1 US tsp per 30 gallons will
raise KH 2 degrees without changing GH or any other water parameters.

--
__ Elaine T __
><__'> http://eethomp.com/fish.html <'__><

[Robert Flory]

> "Squeek" > wrote in message
> ...
>> Hi everyone!
>>
>> Can someone please tell me what is the best way to increase my KH (its
>> way below 120ppm) without disturbing the ph.
>> Id like to keep the ph very stable at around 7.0-7.4 while fishless
>> cycling
>> the tank is 750L (198gal)
>>
>> Thankyou for your suggestions ;-)
>>
>> Ves
WHY keep the pH there ?
Bob

[Squeek]

My reason for keeping the PH in that range while fishl;ess cycling is so
that I dont have to fiddle with the parameters later so when it comes time
to add the goldies back into their home, it will be minumum fuss. I do
understand that adding ammonia to the water in fishless cycling drives the
PH very high and then swings wildly.
My town water is really soft ( i heard it was optimal for goldfish to have a
kh of about 120ppm) and it IS way below that.

Sorry about not making myself clear, but after the large water change after
cycling, i know i have to adjust the KH again...so it is for during and
after.

I work 6 days a week from 8am-6pm and thought that the stabilising of KH
might help keep things in controll somewhat.

So basically, id like to raise the KH in turn stabillising the PH

So thats WHY.
;-)
"Robert Flory" > wrote in message
...
>
>> "Squeek" > wrote in message
>> ...
>>> Hi everyone!
>>>
>>> Can someone please tell me what is the best way to increase my KH (its
>>> way below 120ppm) without disturbing the ph.
>>> Id like to keep the ph very stable at around 7.0-7.4 while fishless
>>> cycling
>>> the tank is 750L (198gal)
>>>
>>> Thankyou for your suggestions ;-)
>>>
>>> Ves
> WHY keep the pH there ?
> Bob
>

[Squeek]

Thankyou Elaine :-)
"Elaine T" > wrote in message
m...
> Angrie.Woman wrote:
>> "Squeek" > wrote in message
>> ...
>>
>>>Hi everyone!
>>>
>>>Can someone please tell me what is the best way to increase my KH (its
>>>way below 120ppm) without disturbing the ph.
>>>Id like to keep the ph very stable at around 7.0-7.4 while fishless
>>>cycling
>>>the tank is 750L (198gal)
>>>
>>>Thankyou for your suggestions ;-)
>>>
>>>Ves
>>
>>
>>
>> I don't have a clue, but I'm crossposting this to the Freshwater group as
>> there are some serious chemists there.
>>
>> A
> Changing KH changes the pH because of the interaction with carbonic acid
> formed from atmospheric CO2. The combination of KH and CO2 (mostly)
> determines the pH of your water. There are other buffering ions in
> tankwater that have an effect on pH, but carbonates are the predominate
> ones.
>
> To have your pH between 7.0 and 7.4 with atmospheric C02 of 2.5-5ppm, you
> need your KH to quite low - around 3 german degrees. I think that's about
> 51 ppm. http://www.thekrib.com/Plants/CO2/kh-ph-co2-chart.html has a chart
> and tables of the pH/KH/CO2 relationship. Adding baking soda (sodium
> bicarbonate) at the rate of 1 US tsp per 30 gallons will raise KH 2
> degrees without changing GH or any other water parameters.
>
> --
> __ Elaine T __
> ><__'> http://eethomp.com/fish.html <'__><