Welcome!! We love new guys, especially when they want to research what they want to do!!!
Do salt if you don't have issues with the cash needed. When you have the opportunity to keep amazing SW
creatures - really large tank. Make sure the flooring can support the weight.
You can start with fish only with live rock (and sand if wanted). Much less light needs if you aren't keeping corals right off the bat - but, you probably will want to keep corals since you are in an area which has such an awesome variety.
Best advice, please just know to remember those cute little fish often get to be sizes that are astounding - so remember to check the adult size of the inhabitants you select.
Overfeeding is usually an issue.
Can't wait to see what you come up with.
New to FW fish? First tank in a long time or EVER??? Need some info on keeping fish?
Start here - Aquarium Advice Article
FW Favorites right now Clown Loaches, any shrimp - SW Vase Red Mangroves