I use to have 4 tanks, one 120 gallon, one 54 gallon corner bow front, one 29 gallon, and one 20 gallon. I use Marineland Bio-Wheel filters. Now that I moved, I have only the 54 gallon :(
Keep up with water changes and DON'T OVER-FEED. I only feed once a day. Don't use cheap filters.
During the summer months, it may become more of a challenge to keep your aquarium temperature stable.
There are many different species of barbs but some of them are better than others for the larger home aquarium.
Cultivating a thriving saltwater tank can be a challenge but it is also incredibly rewarding.