Help with converting from freshwater to saltwater

[Jwinproduction]

I have a 90 gallon tank with a pro clear 125 wet/dry filter and argonite substrate. Do I need to change the substrate or can I still use that instead of live sand. What protein skimmer do you recommend. Do I still use my wet dry? Any tips and advice to get this tank started?

[mgarrido]

You can use your sand but rinse very well before in order to remove detritus and bacteria. If your plan is a reef setup I would recommend change the w/d for a sump or modify your current one if you have the skills. About the skimmers I like the bubble magus skimmers line, very good skimmers for the price.