I have a 53 gal custom cube that just got out of hand so I tore it down completely. I totally cleaned the whole system with bleach and ran fresh water through it for a few days. Afterwords I filled it with 50lbs of dry Marco rock and 40 lbs of live sand and a bottle of bio spira. I had no where to house my two Mocha Clowns, Melanurus wrasse, Candy cane, Hammer, Duncan, and plating Monti for an extended period so I had to put them back into the tank. Any tips on not creating another disaster