Ph low on fishless cycling, afraid to add fish

  • Thread starter Thread starter reefnoob9
  • Start date Start date
  • Tagged users Tagged users None

reefnoob9

Community Member
View Badges
Joined
Dec 11, 2025
Messages
25
Reaction score
5
Location
St. Johns, NL
What state or country do you live in
Canada
Rating - 0%
0   0   0
I have been holding out on water changes in my 32 gallon, while I waited for ammonia to be shipped to me. Anyway, I got my ammonia, dosed, am midway through cycling (ammonia 2ppm went to 0 and nitrite is at 2 ppm), and noticed that my ph is somewhere between 7.4 and 7.8 (API kit). For a pair of juvenile clowns, I had 8.2 pH in mind (correct?), but now im unsure why my pH turns out this low. I used Reef Crystals from Instant Ocean to make the salt water, and that comes with added magnesium and calcium etc.

So is it purely due to me not changing water for a month that this happened? Unfortunately I had not checked pH ever before, so idk if this was always the case.

I plan on doing a 10% water change after cycling is done. Anything else for me to do to up my pH?

My setup is at 26 C, plenty of flow via two wavemakers and a circulation pump.
 
I wouldn't worry about your pH. It's not dangerously low, if it's even accurate. Many tanks run very successfully with chronically low pH, and many members here at R2R don't even bother to check pH 🙂

If you're ammonia was up to about 2.0 ppm and is now down near zero, you're good to add some hardly livestock like Clowns. There's no need to wait for the nitrite to go to zero too.

I hope that helps and good luck!
 

WHAT’S THE HARDEST PART OF REEFING TO EXPLAIN TO A NON-REEFER?

  • Why a tiny coral frag can cost that much

    Votes: 1 10.0%
  • Why I spend time testing and adjusting water

    Votes: 3 30.0%
  • Why the fish I want might not fit my tank

    Votes: 3 30.0%
  • Why I have buckets, tubing, and salt around the house

    Votes: 0 0.0%
  • Why corals are living animals, not decorations

    Votes: 2 20.0%
  • How much time and attention a reef takes

    Votes: 2 20.0%
  • The difference between freshwater and saltwater creatures

    Votes: 0 0.0%
  • I’ve stopped trying to explain

    Votes: 4 40.0%
  • Other (Post in the comments)

    Votes: 0 0.0%
Back
Top
Home
Post thread…
Market
What's new