Hello,
First, welcome to the family of R2R where you will find lots of adorable people and all of them with a wealth of valuable knowledge. All of us here would love to see you succeed, and of course pics once your tank is up.
In your quest for more adventure lol, I would start by doing tons and tons of research. The saltwater side is much more touchy and sensitive then the fresh side. (Not to say fresh isn’t but when things go south in saltwater it’s in a matter of hours if not sooner).
I would also buy your first tank used like others have suggested. Not only is it less expensive, but you can get a nice setup for less than a third of the new price cost. In addition I would definitely see what is the largest size you want and can actually afford, like others have stated. Moving a salt water tank of any size is just well, honestly it just plain kinda is the pits. Not only do you have extreme time constraints but you risk losing everything you worked so hard in keeping.
One of the most important things is go the speed of s frozen snail stuck to a piece of metal that’s been outside in negative 200 degrees for six months. If you move fast in this hobby you will be very frustrated, and it will cost a lot of money. Not only do you go very slow but also try not to make changes and once it is up and running, keep your hands out of the tank. I normally don’t make changes and usually follow the rule of if it’s not broken then don’t fix it. Even I recently broke that rule and it kinda came back and made me pay a little.
Last, please don’t ever feel you can’t ask a question even if you feel it’s embarrassing or you feel silly asking it. We all want you to succeed in this. Another good thing is, as some here are very well known and know their stuff. If they give advice lol it’s extremely wise to listen to them. They definitely know and have the credits as to what they speak.
Good luck
Sincerely
Sarah