Testing Water

[sub ceroh]

Im sure this is a stupid newbie question but I was wondering if there was any difference when testing water day or night??

55gal Salt water tank.

[ccCapt]

Welcome to AA!
The only parameter which will be different is pH. Typically your pH will be higher during the day and drop when the lights are out. Every other parameter will be the same no matter when you test.

[melosu58]

I agree with Larry.

[thincat]

I agree with the statements above except if you are keeping a log of your parameters. Then I believe it is best to take it at about the same time each day. That way your water temp. will be ~the same and you will be able to compare your readings more accurately.

[CaptainAhab]

Originally Posted by melosu58

I agree with Larry.

I agree with you , in agreeing with him

[sub ceroh]

I have started to keep a log. Thanks for the advice!!