Ph dropping!

[traderdan]

My tank finished cycling about a week ago. My ph has always been on the low side. Usually around 7.8-7.9. I just looked and it is 7.67. Seems to be dropping fast. I am using a pinpoint ph tester that was calibrated about two weeks ago. Any suggestions? Would taking My air line for my skimmer and running it to the crawlspace help?

 

[AlSimmons]

This link might help.

http://reefkeeping.com/issues/2004-09/rhf/index.php

 

[traderdan]

Thank you for the link. The link tells me to make sure I have good oxygen exchange. I have two ecotech mp10's and a return pump in a 66 gallon tank. So I have that in check. Then it says to make sure the alkalinity is within reason. My alk is 9. Does anyone else have any suggestions?

 

[Mad_Reefer]

Is the water clear or cloudy? I had this happen because of a bacterial bloom. I added movement to my refugium it went away.

 

[traderdan]

It's clear as can be. I just tested ph with a salifert test with same results. I'm just getting over diatoms and a small patch of green hair algae. It's now dropped 7.65. I really do appreciate the help.

 

[AlSimmons]

I'm assuming you don't have any livestock in the tank yet? If so I wouldn't even worry about it at this point. When you add a coral or two and they begin to look a little grumpy, then you might want to start looking for answers. FWIW I haven't used a pH test kit in probably 15 years or so. It's just not one of the crucial parameters that needs to be held in check IME.

 

[traderdan]

Just added cuc yesterday. I'm probably worrying to much and agree. Tomorrow though I am going to run a air line to crawlspace and see if that helps. I never open windows in my house and that could possibly be a reason.

 

[Tanthaitrung]

Yes, open your windows will help

 

[traderdan]

I have opened them in past half hour. The ph has shot up to 7.70. I guess I should get fresh air more often.

 

[RobZilla04]

Get more water disturbance on the surface. If you have a sump try to ensure surface water movement there as well. That will help with the O2 CO2 exchange and in turn increase the pH.