Ph Tester, Digital or Solution? Options

[a320]

Hi Everyone,

My first post. Would like to know what is consensus on ph testers? Do most people use digital or solution?

I'm currently using a milwaukee ph test pen for my aquarium tank (no green water) but it doesn't seem to instill
confidence as i think my buffer solution is not accurate at all. What sort of calibration buffers do you all use? I'm not from singapore so a headache sourcing calibration solutions here.

I've used the Ph test kits before and thought that a test pen is better....but having my doubts now as i'm not sure of the accuracy.

Could appreciate if anyone could share their thoughts......and also if possible some test pens/ kits recommendations, where to get them from and the price.

Thanks.

[bekko]

The most important thing is to have a stable pH. If you are stable at 7.2 then go with it. Baking soda is very transitory. It will raise the pH quickly and then the pH will quickly fall when it is exhausted.

A lot of factors go into establishing the pH value including the alkalinity, general hardness, minerals the water is being exposed to and the amount of biological activity. You want the coral chips to dissolve "on demand" to replace alkalinity as it is being lost and help maintain a stable pH.

-steve