Originally Posted by
Harial
I was just wondering the actual reason for water changes. I am not being sarcastic or anything. But is it to keep certain chemical levels down or something like that?
:notsure: Harial
Doing water changes is a must. It helps control nitrates and it replenishes trace elements which are necessary for live rock, corals, etc. I do 10% weekly changes in my 46 gallon. Thats 5 gallons a week. It takes 10 mins.