water hardness test for shelldwellers

[ctrif]

I bought I water hardness test in preparation of keeping some shelldwellers.

The test comes with both GH and GK tests. The guy in the lfs said you only have to worry about 1 test, but I can't remember which one?

Also the test seems to go up to 214.8 ppm or 12 dKH (12 drops)

But this website says http/www.cichlidrecipe.com/shellweb/shell_care.htm hardness should be around 500pm?

Did they sell me the wrong test maybe?

 

[freddyk]

The point of having a KH is to buffer the water and keep your water stable. At above 200 it's fine the way it is. A PH test is good too, it sounds like it will be alright but it's always worth a look - 8 or above is best for them.