Im converting my 240g cichlid tank to a FOWLR. The tank is 7 years old and had some scratches so while it was drained I buffed it out with Novus heavy and light scratch remover. I rinsed several times with clean fresh water and the tank looks pretty clean. Any suggestions on other cleaning methods that I can use to ensure there is no residue left over from the buffing? The bottles dont have an ingredient list, just that it contains abrasives- prob silica of some type.