Mke pointed you in the right direction. I would add that personally I have found that the optional equipment is really one of those Mandatory options.
I've been doing salt water for 6 six years after 15+ of FW
only. I've made just about every mistake you can make. Finding this forum has been a huge help.
What I learned my fist week here is that "Nothing GOOD ever happens FAST in a salt water aquarium"!!!!!
Read the articles on this forum, develop a plan, post your plan and thoughts and listen to the mentors and moderators (though we don't always agree LOL).
Salt Water is so much more rewarding and not that much more work.
Welcome to the Salty side!