Join Date: Apr 2012
Location: Vancouver, Canada
CO2 gives a false PH?
Hey all, I'm sure this topic has come up before BUT...
I have a PH sensor, which swings from 7.4 to 6.4 depending on the time of day. First thing in the morning, after my air pump shuts off, it reads 7.4, throughout the day it reads around 6.4.
Now, I'm interested in adding some GBR's to my tank. Research tells me they like soft water down in the 6 to 7 range. How is this PH swing going to affect this fish, which I read is more sensitive?
I added some coral to my filter to buffer my water up from 7 to 7.4, so that after adding CO2, I wasn't going below 6 PH. Should I just remove this coral to soften up my water?
I'm a little confused as to what my PH level actually is as it changes so often. The fact that it changes outside of the recommended water conditions of this fish makes me think I will have a problem.
Thoughts and feedback?