20 Gallon Saltwater Aquarium Startup [Update 1]

This video talks about the costs and steps to setting up a saltwater aquarium. The aquarium has: -20 Gallon glass tank -Sand substrate -5 lbs of Fiji liverock -AquaClear 50 Filter -100 watt Heater -20 gallons of Reverse Osmosis water -Aquarium Salt -Hydor Nano Powerhead This tank has been cycling for a week, updates to come soon, including fish, acclimating, water changes, and lighting I'm planning to stock the tank with some clownfish, does anyone have any other suggestions?