I'm currently in the process of building a 1000 gallon plywood tank/pond for my freshwater fish. I plan on converting my 125 gallon over to a saltwater reef/fish tank. I am running a fluval fx5 currently. I need suggestions and idea for what I could do. I don't really want to spend more money on filtration and would like to stick with just the fx5 for it. I have never done saltwater so tips are appreciated and ideas on how to set up the tank and live rock that works with certain fish sea annenomias and stuff. Thanks been so focused on freshwater I never really ever looked into salt.