Can i use these to adjust the ph?

[CTABB83]

I have both ph up and down but they are made by an aquarium company called API. I was wondering if they'd be ok if I needed to adjust my ph? Thanks.

 

[SofaKingHigh]

I have both ph up and down but they are made by an aquarium company called API. I was wondering if they'd be ok if I needed to adjust my ph? Thanks.

Yes they should work fine, used to adjust ph of water for fish. Just get a decent ph pen and you will be all set.