I have a 300 gallon tank that I wanna do saltwater in.I just want to put large fish in it. Triggers, Angels, Tangs,Lionfish,etc. No coral for now,I already have a nice sump and filters. The tank is doing around 3000 gph,I don't know if this matters with salt. Do I have to take out my freshwater bio media to run salt?? Someone said I didn't have to, Does live sand work right away? How long do I have to cycle my tank for? Do I need a protein skimmer. I basically wanna know what I can do to have the tank running smoooth as soon as possible. I really want to get the community started.Thanks