pH...

[thisoldfish]

hey all,

I started 2 part dosing around 6 weeks ago. Seems to be going well- alk stabilizing around 9 dKh and calcium around 450.

My pH historically hung around 8.0. I've noticed on my pinpoint that it's dropping over past few weeks to around 7.7ish. I figured the pinpoint needed calibration and was surprised tonight when it was spot on. However- my redsea pH test says 8.0-8.1 and API around the same.

No die offs, though I've noticed over the past few weeks some softies didn't seem as happy (kenya tree- however singularia polyps shrooms etc all ok). The SPS/LPS are all happy and growing.

I've been feeding about the same though I know a lot of my reefroids and suspension foods end up in my sump media.. perhaps I need to really shut the system down when I suspension feed..

Advice? I always considered a pH of <8.0 to be a bad thing.. is this the case or should I be ok with 7.7 if that indeed is the true pH?

thanks in advance.

brad

 

[Reef Jedi]

8.0-8.1 is not bad during winter months. As long as its constant and doesn’t swing more then .2 from day and night i wouldn’t worry. If it’s a large swing or the numbers are all over then I’d be concerned. But my rule of thumb is to never chase ph. Stable Alk, Ca and Mg are more important to me.

 

[thisoldfish]

thanks- yeah I wasn't so worried about the pH until it started dropping.. (if it really is). Alk/Ca/Mg all stable.

Here's something I forgot about when I posted: I dose NoPox, and aim to keep nitrates around 5-10. I upped the dose of NoPox around 3 wks ago. Does that drop pH? Is it an organic acid?