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.

[a320]

Oooppss.......over looked that while i was in a hurry registering. Actually from Brunei.

I paid 110 bucks here for the pen tester as there aren't a great deal choices here. From what i can tell, it might not be quite that steep in singapore. Any idea how much one would cost and where is it available?

With regards to the PH buffer with my coral stones, do yo mean if i just keep running the coral stones, the PH will become stable at what it is now or will it stabalise at a higher PH?

If its stable at 7.2 and i wanted to increase it? Do i just add BS till it reaches 7.5 and than the buffer will maintain 7.5? I'm a little bit confused.


Thanks