Fast PH changes effects on your bio filttration?

[NOLAGT]

If your tap water comes out at 6.0 and you aerate the water ovenight in an inert container... and the PH reads 6.5 the next day...

Then out of the tap the PH is actually 6.5...

The "false reading" should be ignored. In this situation, the actual PH out of the tap is 6.5, but the test misreads the PH as 6.0 due to concentrated gases that have formed in the pipes.

So when you are aerating the water overnight in an inert container, you are not allowing the PH to adjust, you are allowing the gases that interfear with your PH test to dissipate...

Well I just got home...put some tap water in a 5gal bucket at work. Took a api PH test and it was 6.0 the lowest it reads. So I took a sample of water in a washed out kentwood bottle and I stuck my PH probe in it from my african tank. So far its at 5.82 and slowly dropping...I have to leave so i'll check later. Now the bucket is at work with an airstone. I'll do the same testing tomorrow afternoon.

Now you say its from trapped gas from being in the pipes? How much water you think is in the pipes...I might run the sink for 15-20 min and then do this test over again to see. Because as of now I drain and fill using a python and that sink. Maybe after the draining sometimes I empty out the water from in the pipes and get non gas trapped water?

My ultimate plan is to get some plastic vats so I can have water ready on hand. Ill have to be doing a lot of water changes for fry tanks and ill really have 2 PH needs 7.0 and 8+

 

[NOLAGT]

So when I left the PH in the kentwood bottle was 5.82 and slowly dropping...I just got home and looked and now its 6.35...I dont have an air stone in it...but I guess its true that the low PH at first is a false reading. I will be interested to see what the bucket with the air stone reads tomorrow.

 

[JakeH]

That trick also works the other way. I age my WC water with an airstone to drop the pH. In South Texas, all our water is high KH from all the Limestone. As I said, I would tend to make the transition slowly, but I also trust nc_nutcase's experience without hesitation...

 

[NOLAGT]

Just some more lintel on my tap water PH. I talked to a water testing place today that test drinking water. They told me that if I test my PH with a electronic PH probe...and it reads 5.5....the PH is actually 5.5....and when it raises to 7.1 after bubbling it that there is a actual change in the PH. So when I do water changes I am shocking my fish terribly. This shows with my Festae fry...I lost 98% of them and it was probably from the PH going in the tank at 5.5 after a water change or topping off. The place wasnt able to tell me why it goes from low to high with out a bunch of testing and stuff but if the electronic test reads low it is low. A friend also told me it could be a buildup of c02 in the well water making carbolic acid and lowering the PH....and adding a airstone bubbles out the co2 and raises the PH.....makes sence to me....anyone else have thoughts.

 

[NOLAGT]

Just some more lintel on my tap water PH. I talked to a water testing place today that test drinking water. They told me that if I test my PH with a electronic PH probe...and it reads 5.5....the PH is actually 5.5....and when it raises to 7.1 after bubbling it that there is a actual change in the PH. So when I do water changes I am shocking my fish terribly. This shows with my Festae fry...I lost 98% of them and it was probably from the PH going in the tank at 5.5 after a water change or topping off. The place wasnt able to tell me why it goes from low to high with out a bunch of testing and stuff but if the electronic test reads low it is low. A friend also told me it could be a buildup of c02 in the well water making carbolic acid and lowering the PH....and adding a airstone bubbles out the co2 and raises the PH.....makes sence to me....anyone else have thoughts.

Sorry...I meant to put CARBONIC acid not Carbolic