Whats our GH of tap water? Testing of GH?

[branong]

Hi guys,
Was just curious about my tank water parameters and tested on KH and GH.
KH is at 5. After adding of Kh plus to buffer.

whereas for GH, the titration just seems never ending. Tried in excess of 20 drops and GH test still haven't reach end result.

Have tried also for tap water but also same result.

1) Can someone shed some light on GH in Singapore, if its truly out is scale
2) could it be that my API GH test kit is faulty?
3) for your planted tank, what is your GH levels at?

Thanks

[Urban Aquaria]

I did a test on the GH in my tap water before (using API GH test kit too) and it came up to 5 drops before the test tube turned yellow... which works out to be in the 50-100 ppm range.

Not sure if there are differences in tap water in various parts of Singapore, but i stay in the west area.

Maybe can refer to this info at PUB website about our local tap water parameters:

http://www.pub.gov.sg/general/waters...gWQReport.aspx

[wongce]

i tested mine ages ago, the GH range differs from 2 to 5, not stable, differs every week ( i test weekly)... i stay in northern

[rainbowdarter]

I stay in the west too. Jurong West near NTi.
GH at low side . At 3rd drops of API tester liquid.


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[midniteguy]

Mine is around 3 to 5 also. Bukit batok here.

[David]

Just out of curiousity, why the need to know the GH unless one is a breeder?

[kapitan]

Just out of curiousity, why the need to know the GH unless one is a breeder?

do we have to be a chemist for this hobby?

[David]

A little bit I guess...yes...

[jasonpoh1975]

good info..

[Redember]

Pasir Ris GH fluctuates between 4-6. Tested with JBL test kit.

[cosworth]

Bedok:
pH 7.5
kH 3
gH 4

[aquanick]

Raffles:
pH 7.5
kH 3-4
gH 3-5