topping off water vs water changes.

[corkyGramma]

You should post a pic.

[rabadanmarco]

i top off a little every day just because i like to keep my salinity the same all the time. someone told me that salinity fluctuations are bad.
and then change 6 gallons every week to get those diminished trace nutrients used by corals/fish and skimming back in. and i don't think that nitrites can evaporate. if anything they get more concentrated.



..............as far as water changes Vs. topping off..........

its not a competition you should do both