I have a 20 gallon innovative Marine aquarium that has been running for four years. I just set up a new 110 gallon tank. I was thinking about breaking down my 20 gallon and selling everything. but then I thought should I make it a quarantine/frag tank? Can I please have your thoughts on this.
if I did make it a quarantine/frag tank, should I break it down then reset it back up? or just leave it and clean it up real nice?
if I did make it a quarantine/frag tank, should I break it down then reset it back up? or just leave it and clean it up real nice?

