I have been running my 24 gallon nano for the past two months with no mechanical filtration. I ran an overflow with a euro reef protein skimmer, 18 watt uv and a fuge before. i got rid of all that stuff and everything still seems to be doing fine even though there is no sand bed only 45 lbs. of LR. I have been doing monthly 5 gallon water changes and everything seems to be doing fine. Am I getting lucky?
http://s113.photobucket.com/albums/n...Picture346.flv