Mixing water from nano to main display tank
So I am setting up my first 20L nano tank. Was thinking of ideas to somehow connect this to my main tank (140) with an overflow box. I could run the overflow box once a week for a couple hours to mix the water with the main. (unfortunately I'm unable to permanently attach the two tanks as one as across the room from the other).
Any advantages to this setup? Maybe it would be a bit more stable?
My reasoning would be to do all my water changes through my main tank instead of my nano. I didn't want to run a skimmer on the nano as I could dilute the nano water with the main. I also have a fuge on my main tank, etc.
Thoughts? Waste of time/effort?