Setting up tank 125g

I have a 125 tank that I'm setting up I have a fluval fx6 filter and a RO/DI 5 stage. What is the best suggestion for setting up a reef tank and an idea on a time general area so I can have an idea on if its cycling correctly. Thanks
Welcome!It will take at least 4 weeks to get it cycled the normal way, adding ammonia or a shrimp (lots of articles/videos on this). ahead and put in your sand and rock, if you will be using, as well as any bio media into your filter.Leave your lights off for the cycle.Post some pics once you get it setup :)Let us know if you run into any other questions!