Api GH test kit alternative

[piker]

Is there a reliable alternative to the api gh test that has a more obvious colour change, struggle with mine and my eyes.

[TropicalFishForums]

[Gingerlove05]

Nt labs? Not sure how good it is though just trying to think of alternates

[piker]

Nt labs? Not sure how good it is though just trying to think of alternates

My suppliers website says 3.01 hardness clarke, how do i convert it to GH?  Give me an idea what i should be seeing with the api kit for now.

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[Paul Sabucchi]

I thought Clark degrees indicated carbonate hardness.
One degree Clark is equal to 14.3 mg/I CaCO3

[piker]

I thought Clark degrees indicated carbonate hardness.
One degree Clark is equal to 14.3 mg/I CaCO3

So thats the KH?

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[Paul Sabucchi]

Yup, and as 1° dKh is 17.83mg CaCO3 it means your water is a bit less than 3° dKH, so reasonably soft, pretty much same I got here in this part of Italy. Allowes me to keep most kind of fish without having to use R/O (except for topping up evaporation in summer)

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[piker]

Well thats confusing as my kh test kit changes colour with the first drop, i was told this meant 0 kh.

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[Gingerlove05]

Nt labs? Not sure how good it is though just trying to think of alternates

My suppliers website says 3.01 hardness clarke, how do i convert it to GH?  Give me an idea what i should be seeing with the api kit for now.

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I use this:
https://www.cactus2000.de/uk/unit/masswas.php

Works out at 2.4dgh (german hardness, means Paul is right with his calculation ) so very soft, general hardness (the amount of dissolved minerals) is measured in degrees german, french or clark(english), the KH is the measure of the carbonates and as far as i know is only measured in dKH...i may be wrong

[piker]

Now im really confused

[Gingerlove05]

Whats confusing you? I’ll try my best to make sense of it for you

[piker]

Is the 2.4dgh what my test kit should be reading. Or is the gh that the kit measures something different.


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[Paul Sabucchi]

Can you post a link to the water company's report?
Anway I would think it is safe to assume your water is soft. I tend to use a TDS (total desolved solids) meter, it is basically a conductivity meter under other name, it gives an instant readout (in parts per million or in micro Siemens) that gives a general idea of how many ions are desolved in the water. They are cheap (not much more than a tenner) and generally reliable

[Gingerlove05]

If your using conditioned tap water, your hardness would be 2.4dgh and thats what the GH test kit would read (athough they tend to read in 1 degree increments, no smaller).

[piker]

I have a tds meter, reads around 110 when conditioner added.I need an idea of GH as its a shrimp tank.
Thanks gingerlove thats what i was after, what the kit should be telling me.

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[wingnut55]

A TDS reading of 110 would work out at between 6-7dGH or there about.