ph problem

sgarron · 08/17/2007, 05:38 PM

My reefkeeper 2 says my ph is 8.1. My sera test says about 9. probe was calibrated 2 days ago. Alk is also high, around 15. Everything else is good. Am, trites, trates, phos all at zero.

What do I trust?

Also lost my flame angel today. Don't want to loose any more.

Percula9 · 08/17/2007, 05:41 PM

If the test is showing high do a 25% water change to put the levels back. Have you been dosing with a PH buffer supplement?

MalHavoc · 08/17/2007, 05:43 PM

Bring a water sample into your LFS for them to test to confirm?

Gwynhidwy · 08/17/2007, 05:46 PM

If you use RO/DI water, test that and if your tests read anything other than 6.9-7.1 your tests are probably off. Nine is very high and I'd expect a fair amount of loss if it is actually that high.

bertoni · 08/17/2007, 05:49 PM

I would trust the meter, in this case, but another opinion might be useful.

sgarron · 08/17/2007, 06:21 PM

OK, I rinsed off the probe and stuck it in a bag of pinpoint 7.0 calibration solution. It read 7.02. I retested am, trite, and trate with my old IO tests everything is zero. Don't have an alk test other than the sera wich I can't really trust at this point. I'll go pick up some salifert tests tomorrow. Anyone want to buy a slightly used Sera test kit?

08/17/2007, 05:38 PM	#1
sgarron Registered Member Join Date: Jun 2007 Location: NJ Posts: 651	ph problem My reefkeeper 2 says my ph is 8.1. My sera test says about 9. probe was calibrated 2 days ago. Alk is also high, around 15. Everything else is good. Am, trites, trates, phos all at zero. What do I trust? Also lost my flame angel today. Don't want to loose any more. __________________ You want cheap, Get a goldfish.

08/17/2007, 05:43 PM	#3
MalHavoc Infinitely Prolonged Join Date: Apr 2002 Location: Canada Posts: 10,850	Bring a water sample into your LFS for them to test to confirm? __________________ Jason "Empathy, he once had decided, must be limited to herbivores or anyhow omnivores who could depart from a meat diet. Because, ultimately, the empathic gift blurred the boundaries between hunter and victim, between the successful and the defeated." -- Do Androids Dream of Electric Sheep?, Philip K Dick

08/17/2007, 05:49 PM	#5
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	I would trust the meter, in this case, but another opinion might be useful. __________________ Jonathan Bertoni

08/17/2007, 06:21 PM	#6
sgarron Registered Member Join Date: Jun 2007 Location: NJ Posts: 651	OK, I rinsed off the probe and stuck it in a bag of pinpoint 7.0 calibration solution. It read 7.02. I retested am, trite, and trate with my old IO tests everything is zero. Don't have an alk test other than the sera wich I can't really trust at this point. I'll go pick up some salifert tests tomorrow. Anyone want to buy a slightly used Sera test kit? __________________ You want cheap, Get a goldfish.

08/17/2007, 05:41 PM	#2
Percula9 Registered Member Join Date: Jul 2007 Location: Orange County CA Posts: 3,819	If the test is showing high do a 25% water change to put the levels back. Have you been dosing with a PH buffer supplement?

08/17/2007, 05:46 PM	#4
Gwynhidwy Meat Popsicle Join Date: Jul 2007 Location: Portland, OR Posts: 1,511	If you use RO/DI water, test that and if your tests read anything other than 6.9-7.1 your tests are probably off. Nine is very high and I'd expect a fair amount of loss if it is actually that high.