Testing after a water change.

[michaelb]

Hello everyone,

When I do a water change how long after can I test the water and get a good sense of the water parameters?

Thanks for the time,

Michael

 

[saltyfilmfolks]

Pretty much immediately. I usually wait a day

 

[michaelb]

Maybe I'll test both after and the next day that might give me a idea on how fast it changes for the bad and good.
Thanks for the time.
Michael

 

[Dr. Reef Verified Sponsor]

Most tanks are turning over water anywhere from 5 to 50 times in 1 hour.
I would say 30 min past the water change will give you pretty good reading.

 

[michaelb]

Thanks

 

[jsker]

I wait a day, to really let things settle in for a true reading. Salts tend to have have higher amounts of Ca, Mg, and Alk. I also test before I change my salt to see where things are at even though I dose.