Water changes!

[cooper]

I usually do weekly water changes to keep the water in the tank as clean as possible. Today is-was a water change day but I jsut tested the water for Calcium, Nitritate, Ammonia, Phosphates, PH, and Alkalinity and everything looks good. So my question is, should I do a weekly water even if the water chemistry seems to be fine.

Calcium 350
Alkalinity 3.8 dkh
Phospates 0.03ppm
PH 8.3
Amonia 0

What do you guys think? Should I wait a few more days? perhaps bi weekly water change instead of weekly?

Cheers