Kudos for doing research! patience is key with saltwater. Plan out everything before you make any purchases. Also decide if you want a mixed reef ( corals, reef safe fish, inverts etc.) or fowlr ( fish only with live rock) Let me know if you narrow that down and decide what size tank you want to go with. You can use any size, I always prefer longer shallow tanks vs tall tanks.
Also keep in mind the bigger the tank the more rock/ equipment you will need. But along with the larger tank you have a bit more room for error in terms of water params. Etc.
Google is your friend as well as a dedicated saltwater forum. (hopefully I am allowed to say that)
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