Hey there guys, hope this is the right place for this thread. I have a 60 gallon glass reef tank that has an issue. The tank while empty in storage in my garage had a large container of used engine oil spilled in it. I am looking to setup a new tank and would like to use this one but obviously have reservations.. i was thinking of cleaning out the tank real well with dawn dish soap. Rinsing it thoroughly and then filling it with water and throwing in some bags of activated charcoal. Maybe running a pump through a charcoal reactor for a few days as well. Any thoughts, tips or recommendations?