I am sure someone has asked this, but I did not know what to search for. Also I have gone through some articles but got different opinions.
I have a 12g nano, heavily loaded with different corals, it runs with a prizm skimmer and 15 lbs of live rock, but with no mechanical foams or filter bags to clean. How often should I perform 25% water change? right now I am doing once a week, but some articles said once every other day. So I would like your suggestion since I know quite some people keep nano here in this forum.
Thanks in advance