Very low-range PH test kit?

[irishspy]

Hi,

Is there such a thing? A test kit (preferably liquid) that measures PH below 6? My 10g regularly regularly shows 6.0 when tested, and I'd like to know if it's going much lower.

:read:

 

[DAVIDFBT]

There is, but they are meant for lab tests and such. I'm not sure if they would work with aquarium water and be as accurate as the API ones.

 

[Riiz]

Digital pH meters are really cheap on Ebay. The cheap milwaukee pH pens cost about $25 shipped and have a range of 0-14.

http://cgi.ebay.com/Milwaukee-pH600...VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247

 

[irishspy]

Thanks. I'll look into those digital testers.