Any ideas about low pH?

[randallino]

nlreefguy, FWIW I noticed this past week with a house full of guests (in laws ) and cooking that my ph dropped to 7.7 - 7.9 but dkh numbers where in 8-9's. But I soon as the house was aired out the ph came back up in the 8's.

[paddyob]

Originally Posted by randallino

nlreefguy, FWIW I noticed this past week with a house full of guests (in laws ) and cooking that my ph dropped to 7.7 - 7.9 but dkh numbers where in 8-9's. But I soon as the house was aired out the ph came back up in the 8's.

So while having company and cooking dinner you were testing your tank? That's dedication! HA HA!

[nlreefguy]

Thanks for all the advice guys, I started up the kalk reactor so we'll see what happens. I'll make a very gradual change to the pH. Every test kit I've ever used and the ones at the LFS as well were all showing my pH at 7.6 or thereabouts. I know it's not a huge cause for concern and I wouldn't worry about it at all normally but last week I dosed kalk by hand a few times and I just found that the corals seemed to really appreciate it. Was it the pH? I don't know, but I'm dosing kalk now anyway so whatever!

[Borderjumper]

I'm with Brad.. Consistancy is the key.. If your tank wants to be 7.6, let it.

I used to stress about mine.. Bumped it up every night just to see it back down in the morning. My corals started looking like poo from the constant change... So I quite checking. It's been prolly 2 years since I checked ph.. And things are doing well enough.