Hi,
Welcome to the site.
Why did you put Prime in the tank, and a butt load of it to boot? I'm happy to see you decided to see what others advise. There is some other starter junk called Cycle, but you still have to let the tank build up enough good bacteria, which means it still has to complete the cycle...both additives are a waste of money. There is just no rushing a SW tank safely. Toss in some pure ammonia, or a chunk of raw shrimp, and wait it out. Adding a live fish will slow down the cycle because you will have to do water changes to keep the fish alive as the tank cycles...
slowing things down so the fish won't die. Prime is for an established tank that's in trouble, it will bind ammonia for 24 hours, giving you time to save your fish, and get things back on track...not for your first cycle.
What Prime does is bind everything up. You want the ammonia to go crazy, and then allow the next stage to go crazy, called nitrites...then when they are all gone the nitrates show on the tests...THEN the cycle is complete. You should be using RO (reverse osmosis) water, found at any grocery store (5g jugs are your friend)...most of us get out own unit. Never use tap water, your fish don't need fluoride treatments for their teeth, and you don't want stuff the city puts in the water in inhibit bacteria...you know...the stuff you are trying to cultivate. With RO water, there is no reason to de-chlorinate the water.
I used canister filters for over 30 years without a hitch. I have a sump system now, and yes it's loud...sounds like a running brook, which I love. It's also the easiest filtration I ever had. It means I can use a good skimmer, because HOB types just don't match the in tank ones. Hiding equipment is another super plus. The canister is indeed absolutely silent, and if quiet is what you want, then don't worry about it. Keep the media changed each month, but not all at one time so you don't destroy all the good bacteria on the media. Always rinse the bio beads in used saltwater when you do a water change, never freshwater.
You should also be setting up a quarantine tank, because if you should add a fish with ich...the display needs to remain 100% empty of fish for 8 solid weeks to kill off the parasite. The old saying of "an ounce of prevention is worth a pound of cure" is very true when it comes to keeping a SW tank..