I've never run a sump wet/dry setup before. And I'm picking up a tank that has a 75g sump but was originally a saltwater tank. How do I convert it to freshwater? And what filter traction media do I put in and where? Imma need pics or illustration to help understand. I've looked online and it gives a rough idea. But I know alot of people use scrubbies in the drip tower but that's about as far as my knowledge goes... any input is greatly appreciated