Then all you did was move the drain hole up from the original posistion, I do not see any advantage to the change. The nice part about the lower drain hole is that you technically have a full time water change going on (small amounts a lot of times) and from what I have read, this is more desireable than larger infrequent changes.
I change 34g of my 100G system weekly and 20 per week on my 24g nano. My 125 gets about 15 (fo), I wish I had a floor drain
