Ph Was Too Low

So I'm doing a fish in cycle. My ph is way too low. Just above 6. So I added some crushed coral to my filter and I'm wondering how long until I should test again?

 

Try again in a day or so, maybe in two days.

 

Try again in a day or so, maybe in two days.

Should I keep up with the daily water changes or hold off a couple days?

 

Should I keep up with the daily water changes or hold off a couple days?

Keep up your water changes. Do you know the ph of your tap?

 

Keep up your water changes. Do you know the ph of your tap?

Not off the top of my head. It was low tho