Lots of great advice in this thread. I looked at your post history and I am going to make one more suggestion. Respectfully, you need to gain more experience. Your history states that almost a month ago, you said saltwater was new to you. So much to learn between a 20g and a 150g. Cost, maintenance, trends, emergencies, failsafes, backups, trial and error. Like many have said, we have closets of crap we’ve replaced because we wanted nicer, or through trial and error. It’s much easier to buy for small than large.
I like where your mind is at. Keep asking questions, learn from others (and their mistakes) and enjoy the hobby. Much like everything else in life, bigger does not equal better