I'm having problems with pH. I think it's way too low. It's reading 6.0, but since this is the lower limit of my API Test kit, it could potentially be lower. I have one large & 2 smaller pieces of driftwood which I suspect are causing the problem. I have added crushed coral to my 2 HOB
filters. After one day the pH is the same.
My questions are:
1) Do I need to add more coral, or just wait longer?
2) Should I try aragonite instead?
3) Would either of the above be inviting other problems?
3) Should I just remove the driftwood (which was expensive) and get some fake driftwood?
I don't like the idea of baking soda, or anything I'd have to dose regularly.
Finally, I'm aware that stable pH is better than perfect. I just want to at least get it above 6.0 so that I can monitor it better.
tank pH: ~6.0
tank ammo: 0.5
tank nitrites & nitrates: 0
: < 1dH
tap pH: 7.0 after 12 hrs